220145960

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{1097}}^1$

素因数の和:1310

約数の個数: 64

約数和(自身を含む): 515840400

約数和(自身を除く): 295694440

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 173, 232, 290, 346, 580, 692, 865, 1097, 1160, 1384, 1730, 2194, 3460, 4388, 5017, 5485, 6920, 8776, 10034, 10970, 20068, 21940, 25085, 31813, 40136, 43880, 50170, 63626, 100340, 127252, 159065, 189781, 200680, 254504, 318130, 379562, 636260, 759124, 948905, 1272520, 1518248, 1897810, 3795620, 5503649, 7591240, 11007298, 22014596, 27518245, 44029192, 55036490, 110072980, 220145960]

約数ペア:

[(1, 220145960), (2, 110072980), (4, 55036490), (5, 44029192), (8, 27518245), (10, 22014596), (20, 11007298), (29, 7591240), (40, 5503649), (58, 3795620), (116, 1897810), (145, 1518248), (173, 1272520), (232, 948905), (290, 759124), (346, 636260), (580, 379562), (692, 318130), (865, 254504), (1097, 200680), (1160, 189781), (1384, 159065), (1730, 127252), (2194, 100340), (3460, 63626), (4388, 50170), (5017, 43880), (5485, 40136), (6920, 31813), (8776, 25085), (10034, 21940), (10970, 20068)]