320996880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{445829}}^1$

素因数の和:445848

約数の個数: 60

約数和(自身を含む): 1078016940

約数和(自身を除く): 757020060

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 445829, 891658, 1337487, 1783316, 2229145, 2674974, 3566632, 4012461, 4458290, 5349948, 6687435, 7133264, 8024922, 8916580, 10699896, 13374870, 16049844, 17833160, 20062305, 21399792, 26749740, 32099688, 35666320, 40124610, 53499480, 64199376, 80249220, 106998960, 160498440, 320996880]

約数ペア:

[(1, 320996880), (2, 160498440), (3, 106998960), (4, 80249220), (5, 64199376), (6, 53499480), (8, 40124610), (9, 35666320), (10, 32099688), (12, 26749740), (15, 21399792), (16, 20062305), (18, 17833160), (20, 16049844), (24, 13374870), (30, 10699896), (36, 8916580), (40, 8024922), (45, 7133264), (48, 6687435), (60, 5349948), (72, 4458290), (80, 4012461), (90, 3566632), (120, 2674974), (144, 2229145), (180, 1783316), (240, 1337487), (360, 891658), (720, 445829)]