321948640

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4993}}^1$

素因数の和:5052

約数の個数: 96

約数和(自身を含む): 845703936

約数和(自身を除く): 523755296

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 403, 416, 496, 520, 620, 806, 992, 1040, 1240, 1612, 2015, 2080, 2480, 3224, 4030, 4960, 4993, 6448, 8060, 9986, 12896, 16120, 19972, 24965, 32240, 39944, 49930, 64480, 64909, 79888, 99860, 129818, 154783, 159776, 199720, 259636, 309566, 324545, 399440, 519272, 619132, 649090, 773915, 798880, 1038544, 1238264, 1298180, 1547830, 2012179, 2077088, 2476528, 2596360, 3095660, 4024358, 4953056, 5192720, 6191320, 8048716, 10060895, 10385440, 12382640, 16097432, 20121790, 24765280, 32194864, 40243580, 64389728, 80487160, 160974320, 321948640]

約数ペア:

[(1, 321948640), (2, 160974320), (4, 80487160), (5, 64389728), (8, 40243580), (10, 32194864), (13, 24765280), (16, 20121790), (20, 16097432), (26, 12382640), (31, 10385440), (32, 10060895), (40, 8048716), (52, 6191320), (62, 5192720), (65, 4953056), (80, 4024358), (104, 3095660), (124, 2596360), (130, 2476528), (155, 2077088), (160, 2012179), (208, 1547830), (248, 1298180), (260, 1238264), (310, 1038544), (403, 798880), (416, 773915), (496, 649090), (520, 619132), (620, 519272), (806, 399440), (992, 324545), (1040, 309566), (1240, 259636), (1612, 199720), (2015, 159776), (2080, 154783), (2480, 129818), (3224, 99860), (4030, 79888), (4960, 64909), (4993, 64480), (6448, 49930), (8060, 39944), (9986, 32240), (12896, 24965), (16120, 19972)]