1311920

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 60

約数和(自身を含む): 3291456

約数和(自身を除く): 1979536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 40, 46, 62, 80, 92, 115, 124, 155, 184, 230, 248, 310, 368, 460, 496, 529, 620, 713, 920, 1058, 1240, 1426, 1840, 2116, 2480, 2645, 2852, 3565, 4232, 5290, 5704, 7130, 8464, 10580, 11408, 14260, 16399, 21160, 28520, 32798, 42320, 57040, 65596, 81995, 131192, 163990, 262384, 327980, 655960, 1311920]

約数ペア:

[(1, 1311920), (2, 655960), (4, 327980), (5, 262384), (8, 163990), (10, 131192), (16, 81995), (20, 65596), (23, 57040), (31, 42320), (40, 32798), (46, 28520), (62, 21160), (80, 16399), (92, 14260), (115, 11408), (124, 10580), (155, 8464), (184, 7130), (230, 5704), (248, 5290), (310, 4232), (368, 3565), (460, 2852), (496, 2645), (529, 2480), (620, 2116), (713, 1840), (920, 1426), (1058, 1240)]