72960940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{971}}^1$

素因数の和:1027

約数の個数: 72

約数和(自身を含む): 175461552

約数和(自身を除く): 102500612

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 289, 340, 442, 578, 884, 971, 1105, 1156, 1445, 1942, 2210, 2890, 3757, 3884, 4420, 4855, 5780, 7514, 9710, 12623, 15028, 16507, 18785, 19420, 25246, 33014, 37570, 50492, 63115, 66028, 75140, 82535, 126230, 165070, 214591, 252460, 280619, 330140, 429182, 561238, 858364, 1072955, 1122476, 1403095, 2145910, 2806190, 3648047, 4291820, 5612380, 7296094, 14592188, 18240235, 36480470, 72960940]

約数ペア:

[(1, 72960940), (2, 36480470), (4, 18240235), (5, 14592188), (10, 7296094), (13, 5612380), (17, 4291820), (20, 3648047), (26, 2806190), (34, 2145910), (52, 1403095), (65, 1122476), (68, 1072955), (85, 858364), (130, 561238), (170, 429182), (221, 330140), (260, 280619), (289, 252460), (340, 214591), (442, 165070), (578, 126230), (884, 82535), (971, 75140), (1105, 66028), (1156, 63115), (1445, 50492), (1942, 37570), (2210, 33014), (2890, 25246), (3757, 19420), (3884, 18785), (4420, 16507), (4855, 15028), (5780, 12623), (7514, 9710)]