81231930

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23143}}^1$

素因数の和:23172

約数の個数: 64

約数和(自身を含む): 233291520

約数和(自身を除く): 152059590

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 90, 117, 130, 135, 195, 234, 270, 351, 390, 585, 702, 1170, 1755, 3510, 23143, 46286, 69429, 115715, 138858, 208287, 231430, 300859, 347145, 416574, 601718, 624861, 694290, 902577, 1041435, 1249722, 1504295, 1805154, 2082870, 2707731, 3008590, 3124305, 4512885, 5415462, 6248610, 8123193, 9025770, 13538655, 16246386, 27077310, 40615965, 81231930]

約数ペア:

[(1, 81231930), (2, 40615965), (3, 27077310), (5, 16246386), (6, 13538655), (9, 9025770), (10, 8123193), (13, 6248610), (15, 5415462), (18, 4512885), (26, 3124305), (27, 3008590), (30, 2707731), (39, 2082870), (45, 1805154), (54, 1504295), (65, 1249722), (78, 1041435), (90, 902577), (117, 694290), (130, 624861), (135, 601718), (195, 416574), (234, 347145), (270, 300859), (351, 231430), (390, 208287), (585, 138858), (702, 115715), (1170, 69429), (1755, 46286), (3510, 23143)]