129918780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{823}}^1\times {\mathrm{877}}^1$

素因数の和:1715

約数の個数: 72

約数和(自身を含む): 395015712

約数和(自身を除く): 265096932

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 823, 877, 1646, 1754, 2469, 2631, 3292, 3508, 4115, 4385, 4938, 5262, 7407, 7893, 8230, 8770, 9876, 10524, 12345, 13155, 14814, 15786, 16460, 17540, 24690, 26310, 29628, 31572, 37035, 39465, 49380, 52620, 74070, 78930, 148140, 157860, 721771, 1443542, 2165313, 2887084, 3608855, 4330626, 6495939, 7217710, 8661252, 10826565, 12991878, 14435420, 21653130, 25983756, 32479695, 43306260, 64959390, 129918780]

約数ペア:

[(1, 129918780), (2, 64959390), (3, 43306260), (4, 32479695), (5, 25983756), (6, 21653130), (9, 14435420), (10, 12991878), (12, 10826565), (15, 8661252), (18, 7217710), (20, 6495939), (30, 4330626), (36, 3608855), (45, 2887084), (60, 2165313), (90, 1443542), (180, 721771), (823, 157860), (877, 148140), (1646, 78930), (1754, 74070), (2469, 52620), (2631, 49380), (3292, 39465), (3508, 37035), (4115, 31572), (4385, 29628), (4938, 26310), (5262, 24690), (7407, 17540), (7893, 16460), (8230, 15786), (8770, 14814), (9876, 13155), (10524, 12345)]