201515780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{2213}}^1$

素因数の和:2408

約数の個数: 48

約数和(自身を含む): 440763120

約数和(自身を除く): 239247340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 157, 290, 314, 580, 628, 785, 1570, 2213, 3140, 4426, 4553, 8852, 9106, 11065, 18212, 22130, 22765, 44260, 45530, 64177, 91060, 128354, 256708, 320885, 347441, 641770, 694882, 1283540, 1389764, 1737205, 3474410, 6948820, 10075789, 20151578, 40303156, 50378945, 100757890, 201515780]

約数ペア:

[(1, 201515780), (2, 100757890), (4, 50378945), (5, 40303156), (10, 20151578), (20, 10075789), (29, 6948820), (58, 3474410), (116, 1737205), (145, 1389764), (157, 1283540), (290, 694882), (314, 641770), (580, 347441), (628, 320885), (785, 256708), (1570, 128354), (2213, 91060), (3140, 64177), (4426, 45530), (4553, 44260), (8852, 22765), (9106, 22130), (11065, 18212)]