210974140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{2141}}^1$

素因数の和:2542

約数の個数: 48

約数和(自身を含む): 478608480

約数和(自身を除く): 267634340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 379, 758, 1516, 1895, 2141, 3790, 4282, 4927, 7580, 8564, 9854, 10705, 19708, 21410, 24635, 27833, 42820, 49270, 55666, 98540, 111332, 139165, 278330, 556660, 811439, 1622878, 3245756, 4057195, 8114390, 10548707, 16228780, 21097414, 42194828, 52743535, 105487070, 210974140]

約数ペア:

[(1, 210974140), (2, 105487070), (4, 52743535), (5, 42194828), (10, 21097414), (13, 16228780), (20, 10548707), (26, 8114390), (52, 4057195), (65, 3245756), (130, 1622878), (260, 811439), (379, 556660), (758, 278330), (1516, 139165), (1895, 111332), (2141, 98540), (3790, 55666), (4282, 49270), (4927, 42820), (7580, 27833), (8564, 24635), (9854, 21410), (10705, 19708)]