28940836940

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{1747}}^1$

素因数の和:2055

約数の個数: 96

約数和(自身を含む): 62902828800

約数和(自身を除く): 33961991860

約数列:

[1, 2, 4, 5, 10, 20, 59, 101, 118, 139, 202, 236, 278, 295, 404, 505, 556, 590, 695, 1010, 1180, 1390, 1747, 2020, 2780, 3494, 5959, 6988, 8201, 8735, 11918, 14039, 16402, 17470, 23836, 28078, 29795, 32804, 34940, 41005, 56156, 59590, 70195, 82010, 103073, 119180, 140390, 164020, 176447, 206146, 242833, 280780, 352894, 412292, 485666, 515365, 705788, 828301, 882235, 971332, 1030730, 1214165, 1656602, 1764470, 2061460, 2428330, 3313204, 3528940, 4141505, 4856660, 8283010, 10410373, 14327147, 16566020, 20820746, 24526133, 28654294, 41641492, 49052266, 52051865, 57308588, 71635735, 98104532, 104103730, 122630665, 143271470, 208207460, 245261330, 286542940, 490522660, 1447041847, 2894083694, 5788167388, 7235209235, 14470418470, 28940836940]

約数ペア:

[(1, 28940836940), (2, 14470418470), (4, 7235209235), (5, 5788167388), (10, 2894083694), (20, 1447041847), (59, 490522660), (101, 286542940), (118, 245261330), (139, 208207460), (202, 143271470), (236, 122630665), (278, 104103730), (295, 98104532), (404, 71635735), (505, 57308588), (556, 52051865), (590, 49052266), (695, 41641492), (1010, 28654294), (1180, 24526133), (1390, 20820746), (1747, 16566020), (2020, 14327147), (2780, 10410373), (3494, 8283010), (5959, 4856660), (6988, 4141505), (8201, 3528940), (8735, 3313204), (11918, 2428330), (14039, 2061460), (16402, 1764470), (17470, 1656602), (23836, 1214165), (28078, 1030730), (29795, 971332), (32804, 882235), (34940, 828301), (41005, 705788), (56156, 515365), (59590, 485666), (70195, 412292), (82010, 352894), (103073, 280780), (119180, 242833), (140390, 206146), (164020, 176447)]