20121479990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{953}}^1\times {\mathrm{124199}}^1$

素因数の和:125176

約数の個数: 32

約数和(自身を含む): 38389723200

約数和(自身を除く): 18268243210

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 953, 1906, 4765, 9530, 16201, 32402, 81005, 124199, 162010, 248398, 620995, 1241990, 2111383, 4222766, 10556915, 21113830, 118361647, 236723294, 591808235, 1183616470, 2012147999, 4024295998, 10060739995, 20121479990]

約数ペア:

[(1, 20121479990), (2, 10060739995), (5, 4024295998), (10, 2012147999), (17, 1183616470), (34, 591808235), (85, 236723294), (170, 118361647), (953, 21113830), (1906, 10556915), (4765, 4222766), (9530, 2111383), (16201, 1241990), (32402, 620995), (81005, 248398), (124199, 162010)]