81580770

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1$

素因数の和:222

約数の個数: 160

約数和(自身を含む): 238360320

約数和(自身を除く): 156779550

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 29, 30, 45, 46, 54, 58, 69, 81, 87, 90, 115, 135, 138, 145, 151, 162, 174, 207, 230, 261, 270, 290, 302, 345, 405, 414, 435, 453, 522, 621, 667, 690, 755, 783, 810, 870, 906, 1035, 1242, 1305, 1334, 1359, 1510, 1566, 1863, 2001, 2070, 2265, 2349, 2610, 2718, 3105, 3335, 3473, 3726, 3915, 4002, 4077, 4379, 4530, 4698, 6003, 6210, 6670, 6795, 6946, 7830, 8154, 8758, 9315, 10005, 10419, 11745, 12006, 12231, 13137, 13590, 17365, 18009, 18630, 20010, 20385, 20838, 21895, 23490, 24462, 26274, 30015, 31257, 34730, 36018, 39411, 40770, 43790, 52095, 54027, 60030, 61155, 62514, 65685, 78822, 90045, 93771, 100717, 104190, 108054, 118233, 122310, 131370, 156285, 180090, 187542, 197055, 201434, 236466, 270135, 281313, 302151, 312570, 354699, 394110, 468855, 503585, 540270, 562626, 591165, 604302, 709398, 906453, 937710, 1007170, 1182330, 1406565, 1510755, 1773495, 1812906, 2719359, 2813130, 3021510, 3546990, 4532265, 5438718, 8158077, 9064530, 13596795, 16316154, 27193590, 40790385, 81580770]

約数ペア:

[(1, 81580770), (2, 40790385), (3, 27193590), (5, 16316154), (6, 13596795), (9, 9064530), (10, 8158077), (15, 5438718), (18, 4532265), (23, 3546990), (27, 3021510), (29, 2813130), (30, 2719359), (45, 1812906), (46, 1773495), (54, 1510755), (58, 1406565), (69, 1182330), (81, 1007170), (87, 937710), (90, 906453), (115, 709398), (135, 604302), (138, 591165), (145, 562626), (151, 540270), (162, 503585), (174, 468855), (207, 394110), (230, 354699), (261, 312570), (270, 302151), (290, 281313), (302, 270135), (345, 236466), (405, 201434), (414, 197055), (435, 187542), (453, 180090), (522, 156285), (621, 131370), (667, 122310), (690, 118233), (755, 108054), (783, 104190), (810, 100717), (870, 93771), (906, 90045), (1035, 78822), (1242, 65685), (1305, 62514), (1334, 61155), (1359, 60030), (1510, 54027), (1566, 52095), (1863, 43790), (2001, 40770), (2070, 39411), (2265, 36018), (2349, 34730), (2610, 31257), (2718, 30015), (3105, 26274), (3335, 24462), (3473, 23490), (3726, 21895), (3915, 20838), (4002, 20385), (4077, 20010), (4379, 18630), (4530, 18009), (4698, 17365), (6003, 13590), (6210, 13137), (6670, 12231), (6795, 12006), (6946, 11745), (7830, 10419), (8154, 10005), (8758, 9315)]