20138604940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{17987}}^1$

素因数の和:18139

約数の個数: 96

約数和(自身を含む): 46508333760

約数和(自身を除く): 26369728820

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 68, 74, 85, 89, 148, 170, 178, 185, 340, 356, 370, 445, 629, 740, 890, 1258, 1513, 1780, 2516, 3026, 3145, 3293, 6052, 6290, 6586, 7565, 12580, 13172, 15130, 16465, 17987, 30260, 32930, 35974, 55981, 65860, 71948, 89935, 111962, 179870, 223924, 279905, 305779, 359740, 559810, 611558, 665519, 1119620, 1223116, 1331038, 1528895, 1600843, 2662076, 3057790, 3201686, 3327595, 6115580, 6403372, 6655190, 8004215, 11313823, 13310380, 16008430, 22627646, 27214331, 32016860, 45255292, 54428662, 56569115, 59231191, 108857324, 113138230, 118462382, 136071655, 226276460, 236924764, 272143310, 296155955, 544286620, 592311910, 1006930247, 1184623820, 2013860494, 4027720988, 5034651235, 10069302470, 20138604940]

約数ペア:

[(1, 20138604940), (2, 10069302470), (4, 5034651235), (5, 4027720988), (10, 2013860494), (17, 1184623820), (20, 1006930247), (34, 592311910), (37, 544286620), (68, 296155955), (74, 272143310), (85, 236924764), (89, 226276460), (148, 136071655), (170, 118462382), (178, 113138230), (185, 108857324), (340, 59231191), (356, 56569115), (370, 54428662), (445, 45255292), (629, 32016860), (740, 27214331), (890, 22627646), (1258, 16008430), (1513, 13310380), (1780, 11313823), (2516, 8004215), (3026, 6655190), (3145, 6403372), (3293, 6115580), (6052, 3327595), (6290, 3201686), (6586, 3057790), (7565, 2662076), (12580, 1600843), (13172, 1528895), (15130, 1331038), (16465, 1223116), (17987, 1119620), (30260, 665519), (32930, 611558), (35974, 559810), (55981, 359740), (65860, 305779), (71948, 279905), (89935, 223924), (111962, 179870)]