19089640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{419}}^1$

素因数の和:514

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 27177560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 67, 68, 85, 134, 136, 170, 268, 335, 340, 419, 536, 670, 680, 838, 1139, 1340, 1676, 2095, 2278, 2680, 3352, 4190, 4556, 5695, 7123, 8380, 9112, 11390, 14246, 16760, 22780, 28073, 28492, 35615, 45560, 56146, 56984, 71230, 112292, 140365, 142460, 224584, 280730, 284920, 477241, 561460, 954482, 1122920, 1908964, 2386205, 3817928, 4772410, 9544820, 19089640]

約数ペア:

[(1, 19089640), (2, 9544820), (4, 4772410), (5, 3817928), (8, 2386205), (10, 1908964), (17, 1122920), (20, 954482), (34, 561460), (40, 477241), (67, 284920), (68, 280730), (85, 224584), (134, 142460), (136, 140365), (170, 112292), (268, 71230), (335, 56984), (340, 56146), (419, 45560), (536, 35615), (670, 28492), (680, 28073), (838, 22780), (1139, 16760), (1340, 14246), (1676, 11390), (2095, 9112), (2278, 8380), (2680, 7123), (3352, 5695), (4190, 4556)]