20535133025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{3391}}^1$

素因数の和:3511

約数の個数: 72

約数和(自身を含む): 29806806528

約数和(自身を除く): 9271673503

約数列:

[1, 5, 11, 19, 25, 55, 61, 95, 209, 275, 305, 361, 475, 671, 1045, 1159, 1525, 1805, 3355, 3391, 3971, 5225, 5795, 9025, 12749, 16775, 16955, 19855, 22021, 28975, 37301, 63745, 64429, 84775, 99275, 110105, 186505, 206851, 242231, 318725, 322145, 550525, 708719, 932525, 1034255, 1211155, 1224151, 1610725, 2275361, 3543595, 3930169, 5171275, 6055775, 6120755, 11376805, 13465661, 17717975, 19650845, 30603775, 43231859, 56884025, 67328305, 74673211, 98254225, 216159295, 336641525, 373366055, 821405321, 1080796475, 1866830275, 4107026605, 20535133025]

約数ペア:

[(1, 20535133025), (5, 4107026605), (11, 1866830275), (19, 1080796475), (25, 821405321), (55, 373366055), (61, 336641525), (95, 216159295), (209, 98254225), (275, 74673211), (305, 67328305), (361, 56884025), (475, 43231859), (671, 30603775), (1045, 19650845), (1159, 17717975), (1525, 13465661), (1805, 11376805), (3355, 6120755), (3391, 6055775), (3971, 5171275), (5225, 3930169), (5795, 3543595), (9025, 2275361), (12749, 1610725), (16775, 1224151), (16955, 1211155), (19855, 1034255), (22021, 932525), (28975, 708719), (37301, 550525), (63745, 322145), (64429, 318725), (84775, 242231), (99275, 206851), (110105, 186505)]