19399240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{877}}^1$

素因数の和:974

約数の個数: 64

約数和(自身を含む): 50572800

約数和(自身を除く): 31173560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 395, 553, 632, 790, 877, 1106, 1580, 1754, 2212, 2765, 3160, 3508, 4385, 4424, 5530, 6139, 7016, 8770, 11060, 12278, 17540, 22120, 24556, 30695, 35080, 49112, 61390, 69283, 122780, 138566, 245560, 277132, 346415, 484981, 554264, 692830, 969962, 1385660, 1939924, 2424905, 2771320, 3879848, 4849810, 9699620, 19399240]

約数ペア:

[(1, 19399240), (2, 9699620), (4, 4849810), (5, 3879848), (7, 2771320), (8, 2424905), (10, 1939924), (14, 1385660), (20, 969962), (28, 692830), (35, 554264), (40, 484981), (56, 346415), (70, 277132), (79, 245560), (140, 138566), (158, 122780), (280, 69283), (316, 61390), (395, 49112), (553, 35080), (632, 30695), (790, 24556), (877, 22120), (1106, 17540), (1580, 12278), (1754, 11060), (2212, 8770), (2765, 7016), (3160, 6139), (3508, 5530), (4385, 4424)]