20974600

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:263

約数の個数: 96

約数和(自身を含む): 53568000

約数和(自身を除く): 32593400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 31, 34, 40, 50, 62, 68, 85, 100, 124, 136, 155, 170, 199, 200, 248, 310, 340, 398, 425, 527, 620, 680, 775, 796, 850, 995, 1054, 1240, 1550, 1592, 1700, 1990, 2108, 2635, 3100, 3383, 3400, 3980, 4216, 4975, 5270, 6169, 6200, 6766, 7960, 9950, 10540, 12338, 13175, 13532, 16915, 19900, 21080, 24676, 26350, 27064, 30845, 33830, 39800, 49352, 52700, 61690, 67660, 84575, 104873, 105400, 123380, 135320, 154225, 169150, 209746, 246760, 308450, 338300, 419492, 524365, 616900, 676600, 838984, 1048730, 1233800, 2097460, 2621825, 4194920, 5243650, 10487300, 20974600]

約数ペア:

[(1, 20974600), (2, 10487300), (4, 5243650), (5, 4194920), (8, 2621825), (10, 2097460), (17, 1233800), (20, 1048730), (25, 838984), (31, 676600), (34, 616900), (40, 524365), (50, 419492), (62, 338300), (68, 308450), (85, 246760), (100, 209746), (124, 169150), (136, 154225), (155, 135320), (170, 123380), (199, 105400), (200, 104873), (248, 84575), (310, 67660), (340, 61690), (398, 52700), (425, 49352), (527, 39800), (620, 33830), (680, 30845), (775, 27064), (796, 26350), (850, 24676), (995, 21080), (1054, 19900), (1240, 16915), (1550, 13532), (1592, 13175), (1700, 12338), (1990, 10540), (2108, 9950), (2635, 7960), (3100, 6766), (3383, 6200), (3400, 6169), (3980, 5270), (4216, 4975)]