19973300

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1$

素因数の和:441

約数の個数: 72

約数和(自身を含む): 47496960

約数和(自身を除く): 27523660

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 31, 34, 50, 62, 68, 85, 100, 124, 155, 170, 310, 340, 379, 425, 527, 620, 758, 775, 850, 1054, 1516, 1550, 1700, 1895, 2108, 2635, 3100, 3790, 5270, 6443, 7580, 9475, 10540, 11749, 12886, 13175, 18950, 23498, 25772, 26350, 32215, 37900, 46996, 52700, 58745, 64430, 117490, 128860, 161075, 199733, 234980, 293725, 322150, 399466, 587450, 644300, 798932, 998665, 1174900, 1997330, 3994660, 4993325, 9986650, 19973300]

約数ペア:

[(1, 19973300), (2, 9986650), (4, 4993325), (5, 3994660), (10, 1997330), (17, 1174900), (20, 998665), (25, 798932), (31, 644300), (34, 587450), (50, 399466), (62, 322150), (68, 293725), (85, 234980), (100, 199733), (124, 161075), (155, 128860), (170, 117490), (310, 64430), (340, 58745), (379, 52700), (425, 46996), (527, 37900), (620, 32215), (758, 26350), (775, 25772), (850, 23498), (1054, 18950), (1516, 13175), (1550, 12886), (1700, 11749), (1895, 10540), (2108, 9475), (2635, 7580), (3100, 6443), (3790, 5270)]