66961720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{631}}^1$

素因数の和:1028

約数の個数: 64

約数和(自身を含む): 172915200

約数和(自身を除く): 105953480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 379, 631, 758, 1262, 1516, 1895, 2524, 2653, 3032, 3155, 3790, 4417, 5048, 5306, 6310, 7580, 8834, 10612, 12620, 13265, 15160, 17668, 21224, 22085, 25240, 26530, 35336, 44170, 53060, 88340, 106120, 176680, 239149, 478298, 956596, 1195745, 1674043, 1913192, 2391490, 3348086, 4782980, 6696172, 8370215, 9565960, 13392344, 16740430, 33480860, 66961720]

約数ペア:

[(1, 66961720), (2, 33480860), (4, 16740430), (5, 13392344), (7, 9565960), (8, 8370215), (10, 6696172), (14, 4782980), (20, 3348086), (28, 2391490), (35, 1913192), (40, 1674043), (56, 1195745), (70, 956596), (140, 478298), (280, 239149), (379, 176680), (631, 106120), (758, 88340), (1262, 53060), (1516, 44170), (1895, 35336), (2524, 26530), (2653, 25240), (3032, 22085), (3155, 21224), (3790, 17668), (4417, 15160), (5048, 13265), (5306, 12620), (6310, 10612), (7580, 8834)]