19946330

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2\times {\mathrm{47}}^1$

素因数の和:159

約数の個数: 48

約数和(自身を含む): 38900736

約数和(自身を除く): 18954406

約数列:

[1, 2, 5, 10, 31, 37, 47, 62, 74, 94, 155, 185, 235, 310, 370, 470, 1147, 1369, 1457, 1739, 2294, 2738, 2914, 3478, 5735, 6845, 7285, 8695, 11470, 13690, 14570, 17390, 42439, 53909, 64343, 84878, 107818, 128686, 212195, 269545, 321715, 424390, 539090, 643430, 1994633, 3989266, 9973165, 19946330]

約数ペア:

[(1, 19946330), (2, 9973165), (5, 3989266), (10, 1994633), (31, 643430), (37, 539090), (47, 424390), (62, 321715), (74, 269545), (94, 212195), (155, 128686), (185, 107818), (235, 84878), (310, 64343), (370, 53909), (470, 42439), (1147, 17390), (1369, 14570), (1457, 13690), (1739, 11470), (2294, 8695), (2738, 7285), (2914, 6845), (3478, 5735)]