205129860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{643}}^1$

素因数の和:1077

約数の個数: 96

約数和(自身を含む): 621022080

約数和(自身を除く): 415892220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 409, 643, 780, 818, 1227, 1286, 1636, 1929, 2045, 2454, 2572, 3215, 3858, 4090, 4908, 5317, 6135, 6430, 7716, 8180, 8359, 9645, 10634, 12270, 12860, 15951, 16718, 19290, 21268, 24540, 25077, 26585, 31902, 33436, 38580, 41795, 50154, 53170, 63804, 79755, 83590, 100308, 106340, 125385, 159510, 167180, 250770, 262987, 319020, 501540, 525974, 788961, 1051948, 1314935, 1577922, 2629870, 3155844, 3418831, 3944805, 5259740, 6837662, 7889610, 10256493, 13675324, 15779220, 17094155, 20512986, 34188310, 41025972, 51282465, 68376620, 102564930, 205129860]

約数ペア:

[(1, 205129860), (2, 102564930), (3, 68376620), (4, 51282465), (5, 41025972), (6, 34188310), (10, 20512986), (12, 17094155), (13, 15779220), (15, 13675324), (20, 10256493), (26, 7889610), (30, 6837662), (39, 5259740), (52, 3944805), (60, 3418831), (65, 3155844), (78, 2629870), (130, 1577922), (156, 1314935), (195, 1051948), (260, 788961), (390, 525974), (409, 501540), (643, 319020), (780, 262987), (818, 250770), (1227, 167180), (1286, 159510), (1636, 125385), (1929, 106340), (2045, 100308), (2454, 83590), (2572, 79755), (3215, 63804), (3858, 53170), (4090, 50154), (4908, 41795), (5317, 38580), (6135, 33436), (6430, 31902), (7716, 26585), (8180, 25077), (8359, 24540), (9645, 21268), (10634, 19290), (12270, 16718), (12860, 15951)]