318920810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{307}}^1$

素因数の和:519

約数の個数: 64

約数和(自身を含む): 635209344

約数和(自身を除く): 316288534

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 131, 262, 305, 307, 610, 614, 655, 793, 1310, 1535, 1586, 1703, 3070, 3406, 3965, 3991, 7930, 7982, 7991, 8515, 15982, 17030, 18727, 19955, 37454, 39910, 39955, 40217, 79910, 80434, 93635, 103883, 187270, 201085, 207766, 243451, 402170, 486902, 519415, 522821, 1038830, 1045642, 1217255, 2434510, 2453237, 2614105, 4906474, 5228210, 12266185, 24532370, 31892081, 63784162, 159460405, 318920810]

約数ペア:

[(1, 318920810), (2, 159460405), (5, 63784162), (10, 31892081), (13, 24532370), (26, 12266185), (61, 5228210), (65, 4906474), (122, 2614105), (130, 2453237), (131, 2434510), (262, 1217255), (305, 1045642), (307, 1038830), (610, 522821), (614, 519415), (655, 486902), (793, 402170), (1310, 243451), (1535, 207766), (1586, 201085), (1703, 187270), (3070, 103883), (3406, 93635), (3965, 80434), (3991, 79910), (7930, 40217), (7982, 39955), (7991, 39910), (8515, 37454), (15982, 19955), (17030, 18727)]