289651120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{743}}^1$

素因数の和:1210

約数の個数: 80

約数和(自身を含む): 737309952

約数和(自身を除く): 447658832

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 443, 743, 880, 886, 1486, 1772, 2215, 2972, 3544, 3715, 4430, 4873, 5944, 7088, 7430, 8173, 8860, 9746, 11888, 14860, 16346, 17720, 19492, 24365, 29720, 32692, 35440, 38984, 40865, 48730, 59440, 65384, 77968, 81730, 97460, 130768, 163460, 194920, 326920, 329149, 389840, 653840, 658298, 1316596, 1645745, 2633192, 3291490, 3620639, 5266384, 6582980, 7241278, 13165960, 14482556, 18103195, 26331920, 28965112, 36206390, 57930224, 72412780, 144825560, 289651120]

約数ペア:

[(1, 289651120), (2, 144825560), (4, 72412780), (5, 57930224), (8, 36206390), (10, 28965112), (11, 26331920), (16, 18103195), (20, 14482556), (22, 13165960), (40, 7241278), (44, 6582980), (55, 5266384), (80, 3620639), (88, 3291490), (110, 2633192), (176, 1645745), (220, 1316596), (440, 658298), (443, 653840), (743, 389840), (880, 329149), (886, 326920), (1486, 194920), (1772, 163460), (2215, 130768), (2972, 97460), (3544, 81730), (3715, 77968), (4430, 65384), (4873, 59440), (5944, 48730), (7088, 40865), (7430, 38984), (8173, 35440), (8860, 32692), (9746, 29720), (11888, 24365), (14860, 19492), (16346, 17720)]