721625160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{23399}}^1$

素因数の和:23670

約数の個数: 64

約数和(自身を含む): 2173392000

約数和(自身を除く): 1451766840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 257, 514, 771, 1028, 1285, 1542, 2056, 2570, 3084, 3855, 5140, 6168, 7710, 10280, 15420, 23399, 30840, 46798, 70197, 93596, 116995, 140394, 187192, 233990, 280788, 350985, 467980, 561576, 701970, 935960, 1403940, 2807880, 6013543, 12027086, 18040629, 24054172, 30067715, 36081258, 48108344, 60135430, 72162516, 90203145, 120270860, 144325032, 180406290, 240541720, 360812580, 721625160]

約数ペア:

[(1, 721625160), (2, 360812580), (3, 240541720), (4, 180406290), (5, 144325032), (6, 120270860), (8, 90203145), (10, 72162516), (12, 60135430), (15, 48108344), (20, 36081258), (24, 30067715), (30, 24054172), (40, 18040629), (60, 12027086), (120, 6013543), (257, 2807880), (514, 1403940), (771, 935960), (1028, 701970), (1285, 561576), (1542, 467980), (2056, 350985), (2570, 280788), (3084, 233990), (3855, 187192), (5140, 140394), (6168, 116995), (7710, 93596), (10280, 70197), (15420, 46798), (23399, 30840)]