20397492090

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{680597}}^1$

素因数の和:680653

約数の個数: 80

約数和(自身を含む): 56329012872

約数和(自身を除く): 35931520782

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 54, 74, 81, 90, 111, 135, 162, 185, 222, 270, 333, 370, 405, 555, 666, 810, 999, 1110, 1665, 1998, 2997, 3330, 4995, 5994, 9990, 14985, 29970, 680597, 1361194, 2041791, 3402985, 4083582, 6125373, 6805970, 10208955, 12250746, 18376119, 20417910, 25182089, 30626865, 36752238, 50364178, 55128357, 61253730, 75546267, 91880595, 110256714, 125910445, 151092534, 183761190, 226638801, 251820890, 275641785, 377731335, 453277602, 551283570, 679916403, 755462670, 1133194005, 1359832806, 2039749209, 2266388010, 3399582015, 4079498418, 6799164030, 10198746045, 20397492090]

約数ペア:

[(1, 20397492090), (2, 10198746045), (3, 6799164030), (5, 4079498418), (6, 3399582015), (9, 2266388010), (10, 2039749209), (15, 1359832806), (18, 1133194005), (27, 755462670), (30, 679916403), (37, 551283570), (45, 453277602), (54, 377731335), (74, 275641785), (81, 251820890), (90, 226638801), (111, 183761190), (135, 151092534), (162, 125910445), (185, 110256714), (222, 91880595), (270, 75546267), (333, 61253730), (370, 55128357), (405, 50364178), (555, 36752238), (666, 30626865), (810, 25182089), (999, 20417910), (1110, 18376119), (1665, 12250746), (1998, 10208955), (2997, 6805970), (3330, 6125373), (4995, 4083582), (5994, 3402985), (9990, 2041791), (14985, 1361194), (29970, 680597)]