51408220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:211

約数の個数: 72

約数和(自身を含む): 116501616

約数和(自身を除く): 65093396

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 86, 92, 113, 115, 172, 215, 226, 230, 430, 452, 460, 529, 565, 860, 989, 1058, 1130, 1978, 2116, 2260, 2599, 2645, 3956, 4859, 4945, 5198, 5290, 9718, 9890, 10396, 10580, 12995, 19436, 19780, 22747, 24295, 25990, 45494, 48590, 51980, 59777, 90988, 97180, 111757, 113735, 119554, 223514, 227470, 239108, 298885, 447028, 454940, 558785, 597770, 1117570, 1195540, 2235140, 2570411, 5140822, 10281644, 12852055, 25704110, 51408220]

約数ペア:

[(1, 51408220), (2, 25704110), (4, 12852055), (5, 10281644), (10, 5140822), (20, 2570411), (23, 2235140), (43, 1195540), (46, 1117570), (86, 597770), (92, 558785), (113, 454940), (115, 447028), (172, 298885), (215, 239108), (226, 227470), (230, 223514), (430, 119554), (452, 113735), (460, 111757), (529, 97180), (565, 90988), (860, 59777), (989, 51980), (1058, 48590), (1130, 45494), (1978, 25990), (2116, 24295), (2260, 22747), (2599, 19780), (2645, 19436), (3956, 12995), (4859, 10580), (4945, 10396), (5198, 9890), (5290, 9718)]