20121608464

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{4621}}^1\times {\mathrm{8779}}^1$

素因数の和:13439

約数の個数: 40

約数和(自身を含む): 40256510720

約数和(自身を除く): 20134902256

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 4621, 8779, 9242, 17558, 18484, 35116, 36968, 70232, 73936, 140464, 143251, 272149, 286502, 544298, 573004, 1088596, 1146008, 2177192, 2292016, 4354384, 40567759, 81135518, 162271036, 324542072, 649084144, 1257600529, 2515201058, 5030402116, 10060804232, 20121608464]

約数ペア:

[(1, 20121608464), (2, 10060804232), (4, 5030402116), (8, 2515201058), (16, 1257600529), (31, 649084144), (62, 324542072), (124, 162271036), (248, 81135518), (496, 40567759), (4621, 4354384), (8779, 2292016), (9242, 2177192), (17558, 1146008), (18484, 1088596), (35116, 573004), (36968, 544298), (70232, 286502), (73936, 272149), (140464, 143251)]