156199940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{1249}}^1$

素因数の和:1321

約数の個数: 72

約数和(自身を含む): 365085000

約数和(自身を除く): 208885060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 169, 185, 260, 338, 370, 481, 676, 740, 845, 962, 1249, 1690, 1924, 2405, 2498, 3380, 4810, 4996, 6245, 6253, 9620, 12490, 12506, 16237, 24980, 25012, 31265, 32474, 46213, 62530, 64948, 81185, 92426, 125060, 162370, 184852, 211081, 231065, 324740, 422162, 462130, 600769, 844324, 924260, 1055405, 1201538, 2110810, 2403076, 3003845, 4221620, 6007690, 7809997, 12015380, 15619994, 31239988, 39049985, 78099970, 156199940]

約数ペア:

[(1, 156199940), (2, 78099970), (4, 39049985), (5, 31239988), (10, 15619994), (13, 12015380), (20, 7809997), (26, 6007690), (37, 4221620), (52, 3003845), (65, 2403076), (74, 2110810), (130, 1201538), (148, 1055405), (169, 924260), (185, 844324), (260, 600769), (338, 462130), (370, 422162), (481, 324740), (676, 231065), (740, 211081), (845, 184852), (962, 162370), (1249, 125060), (1690, 92426), (1924, 81185), (2405, 64948), (2498, 62530), (3380, 46213), (4810, 32474), (4996, 31265), (6245, 25012), (6253, 24980), (9620, 16237), (12490, 12506)]