13758280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:494

約数の個数: 64

約数和(自身を含む): 33422400

約数和(自身を除く): 19664120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 421, 430, 760, 817, 842, 860, 1634, 1684, 1720, 2105, 3268, 3368, 4085, 4210, 6536, 7999, 8170, 8420, 15998, 16340, 16840, 18103, 31996, 32680, 36206, 39995, 63992, 72412, 79990, 90515, 144824, 159980, 181030, 319960, 343957, 362060, 687914, 724120, 1375828, 1719785, 2751656, 3439570, 6879140, 13758280]

約数ペア:

[(1, 13758280), (2, 6879140), (4, 3439570), (5, 2751656), (8, 1719785), (10, 1375828), (19, 724120), (20, 687914), (38, 362060), (40, 343957), (43, 319960), (76, 181030), (86, 159980), (95, 144824), (152, 90515), (172, 79990), (190, 72412), (215, 63992), (344, 39995), (380, 36206), (421, 32680), (430, 31996), (760, 18103), (817, 16840), (842, 16340), (860, 15998), (1634, 8420), (1684, 8170), (1720, 7999), (2105, 6536), (3268, 4210), (3368, 4085)]