64019740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{8867}}^1$

素因数の和:8914

約数の個数: 36

約数和(自身を含む): 141905736

約数和(自身を除く): 77885996

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220, 8867, 17734, 35468, 44335, 88670, 168473, 177340, 336946, 673892, 842365, 1684730, 3200987, 3369460, 6401974, 12803948, 16004935, 32009870, 64019740]

約数ペア:

[(1, 64019740), (2, 32009870), (4, 16004935), (5, 12803948), (10, 6401974), (19, 3369460), (20, 3200987), (38, 1684730), (76, 842365), (95, 673892), (190, 336946), (361, 177340), (380, 168473), (722, 88670), (1444, 44335), (1805, 35468), (3610, 17734), (7220, 8867)]