15980520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:239

約数の個数: 128

約数和(自身を含む): 51955200

約数和(自身を除く): 35974680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 43, 57, 60, 76, 86, 95, 114, 120, 129, 152, 163, 172, 190, 215, 228, 258, 285, 326, 344, 380, 430, 456, 489, 516, 570, 645, 652, 760, 815, 817, 860, 978, 1032, 1140, 1290, 1304, 1630, 1634, 1720, 1956, 2280, 2445, 2451, 2580, 3097, 3260, 3268, 3912, 4085, 4890, 4902, 5160, 6194, 6520, 6536, 7009, 8170, 9291, 9780, 9804, 12255, 12388, 14018, 15485, 16340, 18582, 19560, 19608, 21027, 24510, 24776, 28036, 30970, 32680, 35045, 37164, 42054, 46455, 49020, 56072, 61940, 70090, 74328, 84108, 92910, 98040, 105135, 123880, 133171, 140180, 168216, 185820, 210270, 266342, 280360, 371640, 399513, 420540, 532684, 665855, 799026, 841080, 1065368, 1331710, 1598052, 1997565, 2663420, 3196104, 3995130, 5326840, 7990260, 15980520]

約数ペア:

[(1, 15980520), (2, 7990260), (3, 5326840), (4, 3995130), (5, 3196104), (6, 2663420), (8, 1997565), (10, 1598052), (12, 1331710), (15, 1065368), (19, 841080), (20, 799026), (24, 665855), (30, 532684), (38, 420540), (40, 399513), (43, 371640), (57, 280360), (60, 266342), (76, 210270), (86, 185820), (95, 168216), (114, 140180), (120, 133171), (129, 123880), (152, 105135), (163, 98040), (172, 92910), (190, 84108), (215, 74328), (228, 70090), (258, 61940), (285, 56072), (326, 49020), (344, 46455), (380, 42054), (430, 37164), (456, 35045), (489, 32680), (516, 30970), (570, 28036), (645, 24776), (652, 24510), (760, 21027), (815, 19608), (817, 19560), (860, 18582), (978, 16340), (1032, 15485), (1140, 14018), (1290, 12388), (1304, 12255), (1630, 9804), (1634, 9780), (1720, 9291), (1956, 8170), (2280, 7009), (2445, 6536), (2451, 6520), (2580, 6194), (3097, 5160), (3260, 4902), (3268, 4890), (3912, 4085)]