220121740

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{173}}^1\times {\mathrm{563}}^1$

素因数の和:858

約数の個数: 48

約数和(自身を含む): 469875168

約数和(自身を除く): 249753428

約数列:

[1, 2, 4, 5, 10, 20, 113, 173, 226, 346, 452, 563, 565, 692, 865, 1126, 1130, 1730, 2252, 2260, 2815, 3460, 5630, 11260, 19549, 39098, 63619, 78196, 97399, 97745, 127238, 194798, 195490, 254476, 318095, 389596, 390980, 486995, 636190, 973990, 1272380, 1947980, 11006087, 22012174, 44024348, 55030435, 110060870, 220121740]

約数ペア:

[(1, 220121740), (2, 110060870), (4, 55030435), (5, 44024348), (10, 22012174), (20, 11006087), (113, 1947980), (173, 1272380), (226, 973990), (346, 636190), (452, 486995), (563, 390980), (565, 389596), (692, 318095), (865, 254476), (1126, 195490), (1130, 194798), (1730, 127238), (2252, 97745), (2260, 97399), (2815, 78196), (3460, 63619), (5630, 39098), (11260, 19549)]