61538120

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{31397}}^1$

素因数の和:31422

約数の個数: 48

約数和(自身を含む): 161071740

約数和(自身を除く): 99533620

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 31397, 62794, 125588, 156985, 219779, 251176, 313970, 439558, 627940, 879116, 1098895, 1255880, 1538453, 1758232, 2197790, 3076906, 4395580, 6153812, 7692265, 8791160, 12307624, 15384530, 30769060, 61538120]

約数ペア:

[(1, 61538120), (2, 30769060), (4, 15384530), (5, 12307624), (7, 8791160), (8, 7692265), (10, 6153812), (14, 4395580), (20, 3076906), (28, 2197790), (35, 1758232), (40, 1538453), (49, 1255880), (56, 1098895), (70, 879116), (98, 627940), (140, 439558), (196, 313970), (245, 251176), (280, 219779), (392, 156985), (490, 125588), (980, 62794), (1960, 31397)]