28189720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2357}}^1$

素因数の和:2404

約数の個数: 64

約数和(自身を含む): 71305920

約数和(自身を除く): 43116200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 460, 520, 598, 920, 1196, 1495, 2357, 2392, 2990, 4714, 5980, 9428, 11785, 11960, 18856, 23570, 30641, 47140, 54211, 61282, 94280, 108422, 122564, 153205, 216844, 245128, 271055, 306410, 433688, 542110, 612820, 704743, 1084220, 1225640, 1409486, 2168440, 2818972, 3523715, 5637944, 7047430, 14094860, 28189720]

約数ペア:

[(1, 28189720), (2, 14094860), (4, 7047430), (5, 5637944), (8, 3523715), (10, 2818972), (13, 2168440), (20, 1409486), (23, 1225640), (26, 1084220), (40, 704743), (46, 612820), (52, 542110), (65, 433688), (92, 306410), (104, 271055), (115, 245128), (130, 216844), (184, 153205), (230, 122564), (260, 108422), (299, 94280), (460, 61282), (520, 54211), (598, 47140), (920, 30641), (1196, 23570), (1495, 18856), (2357, 11960), (2392, 11785), (2990, 9428), (4714, 5980)]