90659920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{487}}^1$

素因数の和:692

約数の個数: 80

約数和(自身を含む): 228735360

約数和(自身を除く): 138075440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 179, 208, 260, 358, 487, 520, 716, 895, 974, 1040, 1432, 1790, 1948, 2327, 2435, 2864, 3580, 3896, 4654, 4870, 6331, 7160, 7792, 9308, 9740, 11635, 12662, 14320, 18616, 19480, 23270, 25324, 31655, 37232, 38960, 46540, 50648, 63310, 87173, 93080, 101296, 126620, 174346, 186160, 253240, 348692, 435865, 506480, 697384, 871730, 1133249, 1394768, 1743460, 2266498, 3486920, 4532996, 5666245, 6973840, 9065992, 11332490, 18131984, 22664980, 45329960, 90659920]

約数ペア:

[(1, 90659920), (2, 45329960), (4, 22664980), (5, 18131984), (8, 11332490), (10, 9065992), (13, 6973840), (16, 5666245), (20, 4532996), (26, 3486920), (40, 2266498), (52, 1743460), (65, 1394768), (80, 1133249), (104, 871730), (130, 697384), (179, 506480), (208, 435865), (260, 348692), (358, 253240), (487, 186160), (520, 174346), (716, 126620), (895, 101296), (974, 93080), (1040, 87173), (1432, 63310), (1790, 50648), (1948, 46540), (2327, 38960), (2435, 37232), (2864, 31655), (3580, 25324), (3896, 23270), (4654, 19480), (4870, 18616), (6331, 14320), (7160, 12662), (7792, 11635), (9308, 9740)]