68991660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20173}}^1$

素因数の和:20207

約数の個数: 72

約数和(自身を含む): 220300080

約数和(自身を除く): 151308420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 20173, 40346, 60519, 80692, 100865, 121038, 181557, 201730, 242076, 302595, 363114, 383287, 403460, 605190, 726228, 766574, 907785, 1149861, 1210380, 1533148, 1815570, 1916435, 2299722, 3449583, 3631140, 3832870, 4599444, 5749305, 6899166, 7665740, 11498610, 13798332, 17247915, 22997220, 34495830, 68991660]

約数ペア:

[(1, 68991660), (2, 34495830), (3, 22997220), (4, 17247915), (5, 13798332), (6, 11498610), (9, 7665740), (10, 6899166), (12, 5749305), (15, 4599444), (18, 3832870), (19, 3631140), (20, 3449583), (30, 2299722), (36, 1916435), (38, 1815570), (45, 1533148), (57, 1210380), (60, 1149861), (76, 907785), (90, 766574), (95, 726228), (114, 605190), (171, 403460), (180, 383287), (190, 363114), (228, 302595), (285, 242076), (342, 201730), (380, 181557), (570, 121038), (684, 100865), (855, 80692), (1140, 60519), (1710, 40346), (3420, 20173)]