51764240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{997}}^1$

素因数の和:1080

約数の個数: 80

約数和(自身を含む): 133652160

約数和(自身を除く): 81887920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 59, 80, 88, 110, 118, 176, 220, 236, 295, 440, 472, 590, 649, 880, 944, 997, 1180, 1298, 1994, 2360, 2596, 3245, 3988, 4720, 4985, 5192, 6490, 7976, 9970, 10384, 10967, 12980, 15952, 19940, 21934, 25960, 39880, 43868, 51920, 54835, 58823, 79760, 87736, 109670, 117646, 175472, 219340, 235292, 294115, 438680, 470584, 588230, 647053, 877360, 941168, 1176460, 1294106, 2352920, 2588212, 3235265, 4705840, 5176424, 6470530, 10352848, 12941060, 25882120, 51764240]

約数ペア:

[(1, 51764240), (2, 25882120), (4, 12941060), (5, 10352848), (8, 6470530), (10, 5176424), (11, 4705840), (16, 3235265), (20, 2588212), (22, 2352920), (40, 1294106), (44, 1176460), (55, 941168), (59, 877360), (80, 647053), (88, 588230), (110, 470584), (118, 438680), (176, 294115), (220, 235292), (236, 219340), (295, 175472), (440, 117646), (472, 109670), (590, 87736), (649, 79760), (880, 58823), (944, 54835), (997, 51920), (1180, 43868), (1298, 39880), (1994, 25960), (2360, 21934), (2596, 19940), (3245, 15952), (3988, 12980), (4720, 10967), (4985, 10384), (5192, 9970), (6490, 7976)]