65227720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1283}}^1$

素因数の和:1366

約数の個数: 64

約数和(自身を含む): 155312640

約数和(自身を除く): 90084920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 82, 124, 155, 164, 205, 248, 310, 328, 410, 620, 820, 1240, 1271, 1283, 1640, 2542, 2566, 5084, 5132, 6355, 6415, 10168, 10264, 12710, 12830, 25420, 25660, 39773, 50840, 51320, 52603, 79546, 105206, 159092, 198865, 210412, 263015, 318184, 397730, 420824, 526030, 795460, 1052060, 1590920, 1630693, 2104120, 3261386, 6522772, 8153465, 13045544, 16306930, 32613860, 65227720]

約数ペア:

[(1, 65227720), (2, 32613860), (4, 16306930), (5, 13045544), (8, 8153465), (10, 6522772), (20, 3261386), (31, 2104120), (40, 1630693), (41, 1590920), (62, 1052060), (82, 795460), (124, 526030), (155, 420824), (164, 397730), (205, 318184), (248, 263015), (310, 210412), (328, 198865), (410, 159092), (620, 105206), (820, 79546), (1240, 52603), (1271, 51320), (1283, 50840), (1640, 39773), (2542, 25660), (2566, 25420), (5084, 12830), (5132, 12710), (6355, 10264), (6415, 10168)]