159900520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^2$

素因数の和:227

約数の個数: 96

約数和(自身を含む): 399427560

約数和(自身を除く): 239527040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 71, 104, 122, 130, 142, 244, 260, 284, 305, 355, 488, 520, 568, 610, 710, 793, 923, 1220, 1420, 1586, 1846, 2440, 2840, 3172, 3692, 3965, 4331, 4615, 5041, 6344, 7384, 7930, 8662, 9230, 10082, 15860, 17324, 18460, 20164, 21655, 25205, 31720, 34648, 36920, 40328, 43310, 50410, 56303, 65533, 86620, 100820, 112606, 131066, 173240, 201640, 225212, 262132, 281515, 307501, 327665, 450424, 524264, 563030, 615002, 655330, 1126060, 1230004, 1310660, 1537505, 2252120, 2460008, 2621320, 3075010, 3997513, 6150020, 7995026, 12300040, 15990052, 19987565, 31980104, 39975130, 79950260, 159900520]

約数ペア:

[(1, 159900520), (2, 79950260), (4, 39975130), (5, 31980104), (8, 19987565), (10, 15990052), (13, 12300040), (20, 7995026), (26, 6150020), (40, 3997513), (52, 3075010), (61, 2621320), (65, 2460008), (71, 2252120), (104, 1537505), (122, 1310660), (130, 1230004), (142, 1126060), (244, 655330), (260, 615002), (284, 563030), (305, 524264), (355, 450424), (488, 327665), (520, 307501), (568, 281515), (610, 262132), (710, 225212), (793, 201640), (923, 173240), (1220, 131066), (1420, 112606), (1586, 100820), (1846, 86620), (2440, 65533), (2840, 56303), (3172, 50410), (3692, 43310), (3965, 40328), (4331, 36920), (4615, 34648), (5041, 31720), (6344, 25205), (7384, 21655), (7930, 20164), (8662, 18460), (9230, 17324), (10082, 15860)]