9987900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{197}}^1$

素因数の和:240

約数の個数: 108

約数和(自身を含む): 31451112

約数和(自身を除く): 21463212

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 169, 195, 197, 260, 300, 325, 338, 390, 394, 507, 591, 650, 676, 780, 788, 845, 975, 985, 1014, 1182, 1300, 1690, 1950, 1970, 2028, 2364, 2535, 2561, 2955, 3380, 3900, 3940, 4225, 4925, 5070, 5122, 5910, 7683, 8450, 9850, 10140, 10244, 11820, 12675, 12805, 14775, 15366, 16900, 19700, 25350, 25610, 29550, 30732, 33293, 38415, 50700, 51220, 59100, 64025, 66586, 76830, 99879, 128050, 133172, 153660, 166465, 192075, 199758, 256100, 332930, 384150, 399516, 499395, 665860, 768300, 832325, 998790, 1664650, 1997580, 2496975, 3329300, 4993950, 9987900]

約数ペア:

[(1, 9987900), (2, 4993950), (3, 3329300), (4, 2496975), (5, 1997580), (6, 1664650), (10, 998790), (12, 832325), (13, 768300), (15, 665860), (20, 499395), (25, 399516), (26, 384150), (30, 332930), (39, 256100), (50, 199758), (52, 192075), (60, 166465), (65, 153660), (75, 133172), (78, 128050), (100, 99879), (130, 76830), (150, 66586), (156, 64025), (169, 59100), (195, 51220), (197, 50700), (260, 38415), (300, 33293), (325, 30732), (338, 29550), (390, 25610), (394, 25350), (507, 19700), (591, 16900), (650, 15366), (676, 14775), (780, 12805), (788, 12675), (845, 11820), (975, 10244), (985, 10140), (1014, 9850), (1182, 8450), (1300, 7683), (1690, 5910), (1950, 5122), (1970, 5070), (2028, 4925), (2364, 4225), (2535, 3940), (2561, 3900), (2955, 3380)]