18438056

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:119

約数の個数: 128

約数和(自身を含む): 47308800

約数和(自身を除く): 28870744

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 31, 38, 43, 52, 56, 62, 76, 86, 91, 104, 124, 133, 152, 172, 182, 217, 247, 248, 266, 301, 344, 364, 403, 434, 494, 532, 559, 589, 602, 728, 806, 817, 868, 988, 1064, 1118, 1178, 1204, 1333, 1612, 1634, 1729, 1736, 1976, 2236, 2356, 2408, 2666, 2821, 3224, 3268, 3458, 3913, 4123, 4472, 4712, 5332, 5642, 5719, 6536, 6916, 7657, 7826, 8246, 9331, 10621, 10664, 11284, 11438, 13832, 15314, 15652, 16492, 17329, 18662, 21242, 22568, 22876, 25327, 30628, 31304, 32984, 34658, 37324, 42484, 45752, 50654, 53599, 61256, 69316, 74347, 74648, 84968, 101308, 107198, 121303, 138632, 148694, 177289, 202616, 214396, 242606, 297388, 329251, 354578, 428792, 485212, 594776, 658502, 709156, 970424, 1317004, 1418312, 2304757, 2634008, 4609514, 9219028, 18438056]

約数ペア:

[(1, 18438056), (2, 9219028), (4, 4609514), (7, 2634008), (8, 2304757), (13, 1418312), (14, 1317004), (19, 970424), (26, 709156), (28, 658502), (31, 594776), (38, 485212), (43, 428792), (52, 354578), (56, 329251), (62, 297388), (76, 242606), (86, 214396), (91, 202616), (104, 177289), (124, 148694), (133, 138632), (152, 121303), (172, 107198), (182, 101308), (217, 84968), (247, 74648), (248, 74347), (266, 69316), (301, 61256), (344, 53599), (364, 50654), (403, 45752), (434, 42484), (494, 37324), (532, 34658), (559, 32984), (589, 31304), (602, 30628), (728, 25327), (806, 22876), (817, 22568), (868, 21242), (988, 18662), (1064, 17329), (1118, 16492), (1178, 15652), (1204, 15314), (1333, 13832), (1612, 11438), (1634, 11284), (1729, 10664), (1736, 10621), (1976, 9331), (2236, 8246), (2356, 7826), (2408, 7657), (2666, 6916), (2821, 6536), (3224, 5719), (3268, 5642), (3458, 5332), (3913, 4712), (4123, 4472)]