81142830

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{757}}^1$

素因数の和:1170

約数の個数: 64

約数和(自身を含む): 217212480

約数和(自身を除く): 136069650

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 397, 757, 794, 1191, 1514, 1985, 2271, 2382, 3573, 3785, 3970, 4542, 5955, 6813, 7146, 7570, 10719, 11355, 11910, 13626, 17865, 20439, 21438, 22710, 34065, 35730, 40878, 53595, 68130, 102195, 107190, 204390, 300529, 601058, 901587, 1502645, 1803174, 2704761, 3005290, 4507935, 5409522, 8114283, 9015870, 13523805, 16228566, 27047610, 40571415, 81142830]

約数ペア:

[(1, 81142830), (2, 40571415), (3, 27047610), (5, 16228566), (6, 13523805), (9, 9015870), (10, 8114283), (15, 5409522), (18, 4507935), (27, 3005290), (30, 2704761), (45, 1803174), (54, 1502645), (90, 901587), (135, 601058), (270, 300529), (397, 204390), (757, 107190), (794, 102195), (1191, 68130), (1514, 53595), (1985, 40878), (2271, 35730), (2382, 34065), (3573, 22710), (3785, 21438), (3970, 20439), (4542, 17865), (5955, 13626), (6813, 11910), (7146, 11355), (7570, 10719)]