1640786720

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{1069}}^1$

素因数の和:1318

約数の個数: 96

約数和(自身を含む): 3975032880

約数和(自身を除く): 2334246160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 106, 160, 181, 212, 265, 362, 424, 530, 724, 848, 905, 1060, 1069, 1448, 1696, 1810, 2120, 2138, 2896, 3620, 4240, 4276, 5345, 5792, 7240, 8480, 8552, 9593, 10690, 14480, 17104, 19186, 21380, 28960, 34208, 38372, 42760, 47965, 56657, 76744, 85520, 95930, 113314, 153488, 171040, 191860, 193489, 226628, 283285, 306976, 383720, 386978, 453256, 566570, 767440, 773956, 906512, 967445, 1133140, 1534880, 1547912, 1813024, 1934890, 2266280, 3095824, 3869780, 4532560, 6191648, 7739560, 9065120, 10254917, 15479120, 20509834, 30958240, 41019668, 51274585, 82039336, 102549170, 164078672, 205098340, 328157344, 410196680, 820393360, 1640786720]

約数ペア:

[(1, 1640786720), (2, 820393360), (4, 410196680), (5, 328157344), (8, 205098340), (10, 164078672), (16, 102549170), (20, 82039336), (32, 51274585), (40, 41019668), (53, 30958240), (80, 20509834), (106, 15479120), (160, 10254917), (181, 9065120), (212, 7739560), (265, 6191648), (362, 4532560), (424, 3869780), (530, 3095824), (724, 2266280), (848, 1934890), (905, 1813024), (1060, 1547912), (1069, 1534880), (1448, 1133140), (1696, 967445), (1810, 906512), (2120, 773956), (2138, 767440), (2896, 566570), (3620, 453256), (4240, 386978), (4276, 383720), (5345, 306976), (5792, 283285), (7240, 226628), (8480, 193489), (8552, 191860), (9593, 171040), (10690, 153488), (14480, 113314), (17104, 95930), (19186, 85520), (21380, 76744), (28960, 56657), (34208, 47965), (38372, 42760)]