256488144

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:769

約数の個数: 160

約数和(自身を含む): 782568960

約数和(自身を除く): 526080816

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 19, 22, 24, 33, 37, 38, 44, 48, 57, 66, 74, 76, 88, 111, 114, 132, 148, 152, 176, 209, 222, 228, 264, 296, 304, 407, 418, 444, 456, 528, 592, 627, 691, 703, 814, 836, 888, 912, 1221, 1254, 1382, 1406, 1628, 1672, 1776, 2073, 2109, 2442, 2508, 2764, 2812, 3256, 3344, 4146, 4218, 4884, 5016, 5528, 5624, 6512, 7601, 7733, 8292, 8436, 9768, 10032, 11056, 11248, 13129, 15202, 15466, 16584, 16872, 19536, 22803, 23199, 25567, 26258, 30404, 30932, 33168, 33744, 39387, 45606, 46398, 51134, 52516, 60808, 61864, 76701, 78774, 91212, 92796, 102268, 105032, 121616, 123728, 144419, 153402, 157548, 182424, 185592, 204536, 210064, 281237, 288838, 306804, 315096, 364848, 371184, 409072, 433257, 485773, 562474, 577676, 613608, 630192, 843711, 866514, 971546, 1124948, 1155352, 1227216, 1457319, 1687422, 1733028, 1943092, 2249896, 2310704, 2914638, 3374844, 3466056, 3886184, 4499792, 5343503, 5829276, 6749688, 6932112, 7772368, 10687006, 11658552, 13499376, 16030509, 21374012, 23317104, 32061018, 42748024, 64122036, 85496048, 128244072, 256488144]

約数ペア:

[(1, 256488144), (2, 128244072), (3, 85496048), (4, 64122036), (6, 42748024), (8, 32061018), (11, 23317104), (12, 21374012), (16, 16030509), (19, 13499376), (22, 11658552), (24, 10687006), (33, 7772368), (37, 6932112), (38, 6749688), (44, 5829276), (48, 5343503), (57, 4499792), (66, 3886184), (74, 3466056), (76, 3374844), (88, 2914638), (111, 2310704), (114, 2249896), (132, 1943092), (148, 1733028), (152, 1687422), (176, 1457319), (209, 1227216), (222, 1155352), (228, 1124948), (264, 971546), (296, 866514), (304, 843711), (407, 630192), (418, 613608), (444, 577676), (456, 562474), (528, 485773), (592, 433257), (627, 409072), (691, 371184), (703, 364848), (814, 315096), (836, 306804), (888, 288838), (912, 281237), (1221, 210064), (1254, 204536), (1382, 185592), (1406, 182424), (1628, 157548), (1672, 153402), (1776, 144419), (2073, 123728), (2109, 121616), (2442, 105032), (2508, 102268), (2764, 92796), (2812, 91212), (3256, 78774), (3344, 76701), (4146, 61864), (4218, 60808), (4884, 52516), (5016, 51134), (5528, 46398), (5624, 45606), (6512, 39387), (7601, 33744), (7733, 33168), (8292, 30932), (8436, 30404), (9768, 26258), (10032, 25567), (11056, 23199), (11248, 22803), (13129, 19536), (15202, 16872), (15466, 16584)]