261834170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{461}}^1$

素因数の和:755

約数の個数: 64

約数和(自身を含む): 540673056

約数和(自身を除く): 278838886

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 257, 442, 461, 514, 922, 1105, 1285, 2210, 2305, 2570, 3341, 4369, 4610, 5993, 6682, 7837, 8738, 11986, 15674, 16705, 21845, 29965, 33410, 39185, 43690, 56797, 59930, 78370, 101881, 113594, 118477, 203762, 236954, 283985, 509405, 567970, 592385, 1018810, 1184770, 1540201, 2014109, 3080402, 4028218, 7701005, 10070545, 15402010, 20141090, 26183417, 52366834, 130917085, 261834170]

約数ペア:

[(1, 261834170), (2, 130917085), (5, 52366834), (10, 26183417), (13, 20141090), (17, 15402010), (26, 10070545), (34, 7701005), (65, 4028218), (85, 3080402), (130, 2014109), (170, 1540201), (221, 1184770), (257, 1018810), (442, 592385), (461, 567970), (514, 509405), (922, 283985), (1105, 236954), (1285, 203762), (2210, 118477), (2305, 113594), (2570, 101881), (3341, 78370), (4369, 59930), (4610, 56797), (5993, 43690), (6682, 39185), (7837, 33410), (8738, 29965), (11986, 21845), (15674, 16705)]