72479820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{277}}^1$

素因数の和:392

約数の個数: 144

約数和(自身を含む): 239591520

約数和(自身を除く): 167111700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 89, 98, 105, 140, 147, 178, 196, 210, 245, 267, 277, 294, 356, 420, 445, 490, 534, 554, 588, 623, 735, 831, 890, 980, 1068, 1108, 1246, 1335, 1385, 1470, 1662, 1780, 1869, 1939, 2492, 2670, 2770, 2940, 3115, 3324, 3738, 3878, 4155, 4361, 5340, 5540, 5817, 6230, 7476, 7756, 8310, 8722, 9345, 9695, 11634, 12460, 13083, 13573, 16620, 17444, 18690, 19390, 21805, 23268, 24653, 26166, 27146, 29085, 37380, 38780, 40719, 43610, 49306, 52332, 54292, 58170, 65415, 67865, 73959, 81438, 87220, 98612, 116340, 123265, 130830, 135730, 147918, 162876, 172571, 203595, 246530, 261660, 271460, 295836, 345142, 369795, 407190, 493060, 517713, 690284, 739590, 814380, 862855, 1035426, 1207997, 1479180, 1725710, 2070852, 2415994, 2588565, 3451420, 3623991, 4831988, 5177130, 6039985, 7247982, 10354260, 12079970, 14495964, 18119955, 24159940, 36239910, 72479820]

約数ペア:

[(1, 72479820), (2, 36239910), (3, 24159940), (4, 18119955), (5, 14495964), (6, 12079970), (7, 10354260), (10, 7247982), (12, 6039985), (14, 5177130), (15, 4831988), (20, 3623991), (21, 3451420), (28, 2588565), (30, 2415994), (35, 2070852), (42, 1725710), (49, 1479180), (60, 1207997), (70, 1035426), (84, 862855), (89, 814380), (98, 739590), (105, 690284), (140, 517713), (147, 493060), (178, 407190), (196, 369795), (210, 345142), (245, 295836), (267, 271460), (277, 261660), (294, 246530), (356, 203595), (420, 172571), (445, 162876), (490, 147918), (534, 135730), (554, 130830), (588, 123265), (623, 116340), (735, 98612), (831, 87220), (890, 81438), (980, 73959), (1068, 67865), (1108, 65415), (1246, 58170), (1335, 54292), (1385, 52332), (1470, 49306), (1662, 43610), (1780, 40719), (1869, 38780), (1939, 37380), (2492, 29085), (2670, 27146), (2770, 26166), (2940, 24653), (3115, 23268), (3324, 21805), (3738, 19390), (3878, 18690), (4155, 17444), (4361, 16620), (5340, 13573), (5540, 13083), (5817, 12460), (6230, 11634), (7476, 9695), (7756, 9345), (8310, 8722)]