15319840

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^2\times {\mathrm{181}}^1$

素因数の和:242

約数の個数: 72

約数和(自身を含む): 38044188

約数和(自身を除く): 22724348

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 181, 184, 230, 362, 368, 460, 529, 724, 736, 905, 920, 1058, 1448, 1810, 1840, 2116, 2645, 2896, 3620, 3680, 4163, 4232, 5290, 5792, 7240, 8326, 8464, 10580, 14480, 16652, 16928, 20815, 21160, 28960, 33304, 41630, 42320, 66608, 83260, 84640, 95749, 133216, 166520, 191498, 333040, 382996, 478745, 666080, 765992, 957490, 1531984, 1914980, 3063968, 3829960, 7659920, 15319840]

約数ペア:

[(1, 15319840), (2, 7659920), (4, 3829960), (5, 3063968), (8, 1914980), (10, 1531984), (16, 957490), (20, 765992), (23, 666080), (32, 478745), (40, 382996), (46, 333040), (80, 191498), (92, 166520), (115, 133216), (160, 95749), (181, 84640), (184, 83260), (230, 66608), (362, 42320), (368, 41630), (460, 33304), (529, 28960), (724, 21160), (736, 20815), (905, 16928), (920, 16652), (1058, 14480), (1448, 10580), (1810, 8464), (1840, 8326), (2116, 7240), (2645, 5792), (2896, 5290), (3620, 4232), (3680, 4163)]