20922525

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{311}}^1$

素因数の和:363

約数の個数: 72

約数和(自身を含む): 42247296

約数和(自身を除く): 21324771

約数列:

[1, 3, 5, 9, 13, 15, 23, 25, 39, 45, 65, 69, 75, 115, 117, 195, 207, 225, 299, 311, 325, 345, 575, 585, 897, 933, 975, 1035, 1495, 1555, 1725, 2691, 2799, 2925, 4043, 4485, 4665, 5175, 7153, 7475, 7775, 12129, 13455, 13995, 20215, 21459, 22425, 23325, 35765, 36387, 60645, 64377, 67275, 69975, 92989, 101075, 107295, 178825, 181935, 278967, 303225, 321885, 464945, 536475, 836901, 909675, 1394835, 1609425, 2324725, 4184505, 6974175, 20922525]

約数ペア:

[(1, 20922525), (3, 6974175), (5, 4184505), (9, 2324725), (13, 1609425), (15, 1394835), (23, 909675), (25, 836901), (39, 536475), (45, 464945), (65, 321885), (69, 303225), (75, 278967), (115, 181935), (117, 178825), (195, 107295), (207, 101075), (225, 92989), (299, 69975), (311, 67275), (325, 64377), (345, 60645), (575, 36387), (585, 35765), (897, 23325), (933, 22425), (975, 21459), (1035, 20215), (1495, 13995), (1555, 13455), (1725, 12129), (2691, 7775), (2799, 7475), (2925, 7153), (4043, 5175), (4485, 4665)]