123900800

素因数分解:

$2^7\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1249}}^1$

素因数の和:1304

約数の個数: 96

約数和(自身を含む): 316200000

約数和(自身を除く): 192299200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 155, 160, 200, 248, 310, 320, 400, 496, 620, 640, 775, 800, 992, 1240, 1249, 1550, 1600, 1984, 2480, 2498, 3100, 3200, 3968, 4960, 4996, 6200, 6245, 9920, 9992, 12400, 12490, 19840, 19984, 24800, 24980, 31225, 38719, 39968, 49600, 49960, 62450, 77438, 79936, 99200, 99920, 124900, 154876, 159872, 193595, 199840, 249800, 309752, 387190, 399680, 499600, 619504, 774380, 799360, 967975, 999200, 1239008, 1548760, 1935950, 1998400, 2478016, 3097520, 3871900, 3996800, 4956032, 6195040, 7743800, 12390080, 15487600, 24780160, 30975200, 61950400, 123900800]

約数ペア:

[(1, 123900800), (2, 61950400), (4, 30975200), (5, 24780160), (8, 15487600), (10, 12390080), (16, 7743800), (20, 6195040), (25, 4956032), (31, 3996800), (32, 3871900), (40, 3097520), (50, 2478016), (62, 1998400), (64, 1935950), (80, 1548760), (100, 1239008), (124, 999200), (128, 967975), (155, 799360), (160, 774380), (200, 619504), (248, 499600), (310, 399680), (320, 387190), (400, 309752), (496, 249800), (620, 199840), (640, 193595), (775, 159872), (800, 154876), (992, 124900), (1240, 99920), (1249, 99200), (1550, 79936), (1600, 77438), (1984, 62450), (2480, 49960), (2498, 49600), (3100, 39968), (3200, 38719), (3968, 31225), (4960, 24980), (4996, 24800), (6200, 19984), (6245, 19840), (9920, 12490), (9992, 12400)]