438993820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{587}}^1\times {\mathrm{613}}^1$

素因数の和:1270

約数の個数: 48

約数和(自身を含む): 940127328

約数和(自身を除く): 501133508

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 587, 610, 613, 1174, 1220, 1226, 2348, 2452, 2935, 3065, 5870, 6130, 11740, 12260, 35807, 37393, 71614, 74786, 143228, 149572, 179035, 186965, 358070, 359831, 373930, 716140, 719662, 747860, 1439324, 1799155, 3598310, 7196620, 21949691, 43899382, 87798764, 109748455, 219496910, 438993820]

約数ペア:

[(1, 438993820), (2, 219496910), (4, 109748455), (5, 87798764), (10, 43899382), (20, 21949691), (61, 7196620), (122, 3598310), (244, 1799155), (305, 1439324), (587, 747860), (610, 719662), (613, 716140), (1174, 373930), (1220, 359831), (1226, 358070), (2348, 186965), (2452, 179035), (2935, 149572), (3065, 143228), (5870, 74786), (6130, 71614), (11740, 37393), (12260, 35807)]