639657648

素因数分解:

$2^4\times 3^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1237}}^1$

素因数の和:1286

約数の個数: 240

約数和(自身を含む): 2235134720

約数和(自身を除く): 1595477072

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 19, 21, 24, 27, 28, 36, 38, 42, 48, 54, 56, 57, 63, 72, 76, 81, 84, 108, 112, 114, 126, 133, 144, 152, 162, 168, 171, 189, 216, 228, 243, 252, 266, 304, 324, 336, 342, 378, 399, 432, 456, 486, 504, 513, 532, 567, 648, 684, 756, 798, 912, 972, 1008, 1026, 1064, 1134, 1197, 1237, 1296, 1368, 1512, 1539, 1596, 1701, 1944, 2052, 2128, 2268, 2394, 2474, 2736, 3024, 3078, 3192, 3402, 3591, 3711, 3888, 4104, 4536, 4617, 4788, 4948, 6156, 6384, 6804, 7182, 7422, 8208, 8659, 9072, 9234, 9576, 9896, 10773, 11133, 12312, 13608, 14364, 14844, 17318, 18468, 19152, 19792, 21546, 22266, 23503, 24624, 25977, 27216, 28728, 29688, 32319, 33399, 34636, 36936, 43092, 44532, 47006, 51954, 57456, 59376, 64638, 66798, 69272, 70509, 73872, 77931, 86184, 89064, 94012, 100197, 103908, 129276, 133596, 138544, 141018, 155862, 164521, 172368, 178128, 188024, 200394, 207816, 211527, 233793, 258552, 267192, 282036, 300591, 311724, 329042, 376048, 400788, 415632, 423054, 467586, 493563, 517104, 534384, 564072, 601182, 623448, 634581, 658084, 701379, 801576, 846108, 935172, 987126, 1128144, 1202364, 1246896, 1269162, 1316168, 1402758, 1480689, 1603152, 1692216, 1870344, 1903743, 1974252, 2104137, 2404728, 2538324, 2632336, 2805516, 2961378, 3384432, 3740688, 3807486, 3948504, 4208274, 4442067, 4809456, 5076648, 5611032, 5711229, 5922756, 7614972, 7897008, 8416548, 8884134, 10153296, 11222064, 11422458, 11845512, 13326201, 15229944, 16833096, 17768268, 22844916, 23691024, 26652402, 30459888, 33666192, 35536536, 39978603, 45689832, 53304804, 71073072, 79957206, 91379664, 106609608, 159914412, 213219216, 319828824, 639657648]

約数ペア:

[(1, 639657648), (2, 319828824), (3, 213219216), (4, 159914412), (6, 106609608), (7, 91379664), (8, 79957206), (9, 71073072), (12, 53304804), (14, 45689832), (16, 39978603), (18, 35536536), (19, 33666192), (21, 30459888), (24, 26652402), (27, 23691024), (28, 22844916), (36, 17768268), (38, 16833096), (42, 15229944), (48, 13326201), (54, 11845512), (56, 11422458), (57, 11222064), (63, 10153296), (72, 8884134), (76, 8416548), (81, 7897008), (84, 7614972), (108, 5922756), (112, 5711229), (114, 5611032), (126, 5076648), (133, 4809456), (144, 4442067), (152, 4208274), (162, 3948504), (168, 3807486), (171, 3740688), (189, 3384432), (216, 2961378), (228, 2805516), (243, 2632336), (252, 2538324), (266, 2404728), (304, 2104137), (324, 1974252), (336, 1903743), (342, 1870344), (378, 1692216), (399, 1603152), (432, 1480689), (456, 1402758), (486, 1316168), (504, 1269162), (513, 1246896), (532, 1202364), (567, 1128144), (648, 987126), (684, 935172), (756, 846108), (798, 801576), (912, 701379), (972, 658084), (1008, 634581), (1026, 623448), (1064, 601182), (1134, 564072), (1197, 534384), (1237, 517104), (1296, 493563), (1368, 467586), (1512, 423054), (1539, 415632), (1596, 400788), (1701, 376048), (1944, 329042), (2052, 311724), (2128, 300591), (2268, 282036), (2394, 267192), (2474, 258552), (2736, 233793), (3024, 211527), (3078, 207816), (3192, 200394), (3402, 188024), (3591, 178128), (3711, 172368), (3888, 164521), (4104, 155862), (4536, 141018), (4617, 138544), (4788, 133596), (4948, 129276), (6156, 103908), (6384, 100197), (6804, 94012), (7182, 89064), (7422, 86184), (8208, 77931), (8659, 73872), (9072, 70509), (9234, 69272), (9576, 66798), (9896, 64638), (10773, 59376), (11133, 57456), (12312, 51954), (13608, 47006), (14364, 44532), (14844, 43092), (17318, 36936), (18468, 34636), (19152, 33399), (19792, 32319), (21546, 29688), (22266, 28728), (23503, 27216), (24624, 25977)]