68740360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{811}}^1$

素因数の和:998

約数の個数: 64

約数和(自身を含む): 167791680

約数和(自身を除く): 99051320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 163, 260, 326, 520, 652, 811, 815, 1304, 1622, 1630, 2119, 3244, 3260, 4055, 4238, 6488, 6520, 8110, 8476, 10543, 10595, 16220, 16952, 21086, 21190, 32440, 42172, 42380, 52715, 84344, 84760, 105430, 132193, 210860, 264386, 421720, 528772, 660965, 1057544, 1321930, 1718509, 2643860, 3437018, 5287720, 6874036, 8592545, 13748072, 17185090, 34370180, 68740360]

約数ペア:

[(1, 68740360), (2, 34370180), (4, 17185090), (5, 13748072), (8, 8592545), (10, 6874036), (13, 5287720), (20, 3437018), (26, 2643860), (40, 1718509), (52, 1321930), (65, 1057544), (104, 660965), (130, 528772), (163, 421720), (260, 264386), (326, 210860), (520, 132193), (652, 105430), (811, 84760), (815, 84344), (1304, 52715), (1622, 42380), (1630, 42172), (2119, 32440), (3244, 21190), (3260, 21086), (4055, 16952), (4238, 16220), (6488, 10595), (6520, 10543), (8110, 8476)]