129638720

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^2\times {\mathrm{241}}^1$

素因数の和:340

約数の個数: 84

約数和(自身を含む): 317728092

約数和(自身を除く): 188089372

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 160, 164, 205, 241, 320, 328, 410, 482, 656, 820, 964, 1205, 1312, 1640, 1681, 1928, 2410, 2624, 3280, 3362, 3856, 4820, 6560, 6724, 7712, 8405, 9640, 9881, 13120, 13448, 15424, 16810, 19280, 19762, 26896, 33620, 38560, 39524, 49405, 53792, 67240, 77120, 79048, 98810, 107584, 134480, 158096, 197620, 268960, 316192, 395240, 405121, 537920, 632384, 790480, 810242, 1580960, 1620484, 2025605, 3161920, 3240968, 4051210, 6481936, 8102420, 12963872, 16204840, 25927744, 32409680, 64819360, 129638720]

約数ペア:

[(1, 129638720), (2, 64819360), (4, 32409680), (5, 25927744), (8, 16204840), (10, 12963872), (16, 8102420), (20, 6481936), (32, 4051210), (40, 3240968), (41, 3161920), (64, 2025605), (80, 1620484), (82, 1580960), (160, 810242), (164, 790480), (205, 632384), (241, 537920), (320, 405121), (328, 395240), (410, 316192), (482, 268960), (656, 197620), (820, 158096), (964, 134480), (1205, 107584), (1312, 98810), (1640, 79048), (1681, 77120), (1928, 67240), (2410, 53792), (2624, 49405), (3280, 39524), (3362, 38560), (3856, 33620), (4820, 26896), (6560, 19762), (6724, 19280), (7712, 16810), (8405, 15424), (9640, 13448), (9881, 13120)]