4448444

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:147

約数の個数: 72

約数和(自身を含む): 10635744

約数和(自身を除く): 6187300

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 101, 121, 143, 154, 182, 202, 242, 286, 308, 364, 404, 484, 572, 707, 847, 1001, 1111, 1313, 1414, 1573, 1694, 2002, 2222, 2626, 2828, 3146, 3388, 4004, 4444, 5252, 6292, 7777, 9191, 11011, 12221, 14443, 15554, 18382, 22022, 24442, 28886, 31108, 36764, 44044, 48884, 57772, 85547, 101101, 158873, 171094, 202202, 317746, 342188, 404404, 635492, 1112111, 2224222, 4448444]

約数ペア:

[(1, 4448444), (2, 2224222), (4, 1112111), (7, 635492), (11, 404404), (13, 342188), (14, 317746), (22, 202202), (26, 171094), (28, 158873), (44, 101101), (52, 85547), (77, 57772), (91, 48884), (101, 44044), (121, 36764), (143, 31108), (154, 28886), (182, 24442), (202, 22022), (242, 18382), (286, 15554), (308, 14443), (364, 12221), (404, 11011), (484, 9191), (572, 7777), (707, 6292), (847, 5252), (1001, 4444), (1111, 4004), (1313, 3388), (1414, 3146), (1573, 2828), (1694, 2626), (2002, 2222)]