253346080

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{349}}^2$

素因数の和:726

約数の個数: 72

約数和(自身を含む): 646423092

約数和(自身を除く): 393077012

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 349, 416, 520, 698, 1040, 1396, 1745, 2080, 2792, 3490, 4537, 5584, 6980, 9074, 11168, 13960, 18148, 22685, 27920, 36296, 45370, 55840, 72592, 90740, 121801, 145184, 181480, 243602, 362960, 487204, 609005, 725920, 974408, 1218010, 1583413, 1948816, 2436020, 3166826, 3897632, 4872040, 6333652, 7917065, 9744080, 12667304, 15834130, 19488160, 25334608, 31668260, 50669216, 63336520, 126673040, 253346080]

約数ペア:

[(1, 253346080), (2, 126673040), (4, 63336520), (5, 50669216), (8, 31668260), (10, 25334608), (13, 19488160), (16, 15834130), (20, 12667304), (26, 9744080), (32, 7917065), (40, 6333652), (52, 4872040), (65, 3897632), (80, 3166826), (104, 2436020), (130, 1948816), (160, 1583413), (208, 1218010), (260, 974408), (349, 725920), (416, 609005), (520, 487204), (698, 362960), (1040, 243602), (1396, 181480), (1745, 145184), (2080, 121801), (2792, 90740), (3490, 72592), (4537, 55840), (5584, 45370), (6980, 36296), (9074, 27920), (11168, 22685), (13960, 18148)]