9976720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:260

約数の個数: 80

約数和(自身を含む): 25592112

約数和(自身を除く): 15615392

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 181, 208, 212, 260, 265, 362, 424, 520, 530, 689, 724, 848, 905, 1040, 1060, 1378, 1448, 1810, 2120, 2353, 2756, 2896, 3445, 3620, 4240, 4706, 5512, 6890, 7240, 9412, 9593, 11024, 11765, 13780, 14480, 18824, 19186, 23530, 27560, 37648, 38372, 47060, 47965, 55120, 76744, 94120, 95930, 124709, 153488, 188240, 191860, 249418, 383720, 498836, 623545, 767440, 997672, 1247090, 1995344, 2494180, 4988360, 9976720]

約数ペア:

[(1, 9976720), (2, 4988360), (4, 2494180), (5, 1995344), (8, 1247090), (10, 997672), (13, 767440), (16, 623545), (20, 498836), (26, 383720), (40, 249418), (52, 191860), (53, 188240), (65, 153488), (80, 124709), (104, 95930), (106, 94120), (130, 76744), (181, 55120), (208, 47965), (212, 47060), (260, 38372), (265, 37648), (362, 27560), (424, 23530), (520, 19186), (530, 18824), (689, 14480), (724, 13780), (848, 11765), (905, 11024), (1040, 9593), (1060, 9412), (1378, 7240), (1448, 6890), (1810, 5512), (2120, 4706), (2353, 4240), (2756, 3620), (2896, 3445)]