1272620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 2993760

約数和(自身を除く): 1721140

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 197, 323, 340, 380, 394, 646, 788, 985, 1292, 1615, 1970, 3230, 3349, 3743, 3940, 6460, 6698, 7486, 13396, 14972, 16745, 18715, 33490, 37430, 63631, 66980, 74860, 127262, 254524, 318155, 636310, 1272620]

約数ペア:

[(1, 1272620), (2, 636310), (4, 318155), (5, 254524), (10, 127262), (17, 74860), (19, 66980), (20, 63631), (34, 37430), (38, 33490), (68, 18715), (76, 16745), (85, 14972), (95, 13396), (170, 7486), (190, 6698), (197, 6460), (323, 3940), (340, 3743), (380, 3349), (394, 3230), (646, 1970), (788, 1615), (985, 1292)]