31519920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2153}}^1$

素因数の和:2230

約数の個数: 80

約数和(自身を含む): 99359712

約数和(自身を除く): 67839792

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 61, 80, 120, 122, 183, 240, 244, 305, 366, 488, 610, 732, 915, 976, 1220, 1464, 1830, 2153, 2440, 2928, 3660, 4306, 4880, 6459, 7320, 8612, 10765, 12918, 14640, 17224, 21530, 25836, 32295, 34448, 43060, 51672, 64590, 86120, 103344, 129180, 131333, 172240, 258360, 262666, 393999, 516720, 525332, 656665, 787998, 1050664, 1313330, 1575996, 1969995, 2101328, 2626660, 3151992, 3939990, 5253320, 6303984, 7879980, 10506640, 15759960, 31519920]

約数ペア:

[(1, 31519920), (2, 15759960), (3, 10506640), (4, 7879980), (5, 6303984), (6, 5253320), (8, 3939990), (10, 3151992), (12, 2626660), (15, 2101328), (16, 1969995), (20, 1575996), (24, 1313330), (30, 1050664), (40, 787998), (48, 656665), (60, 525332), (61, 516720), (80, 393999), (120, 262666), (122, 258360), (183, 172240), (240, 131333), (244, 129180), (305, 103344), (366, 86120), (488, 64590), (610, 51672), (732, 43060), (915, 34448), (976, 32295), (1220, 25836), (1464, 21530), (1830, 17224), (2153, 14640), (2440, 12918), (2928, 10765), (3660, 8612), (4306, 7320), (4880, 6459)]