79778860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{641}}^1$

素因数の和:791

約数の個数: 72

約数和(自身を含む): 196729344

約数和(自身を除く): 116950484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 127, 140, 196, 245, 254, 490, 508, 635, 641, 889, 980, 1270, 1282, 1778, 2540, 2564, 3205, 3556, 4445, 4487, 6223, 6410, 8890, 8974, 12446, 12820, 17780, 17948, 22435, 24892, 31115, 31409, 44870, 62230, 62818, 81407, 89740, 124460, 125636, 157045, 162814, 314090, 325628, 407035, 569849, 628180, 814070, 1139698, 1628140, 2279396, 2849245, 3988943, 5698490, 7977886, 11396980, 15955772, 19944715, 39889430, 79778860]

約数ペア:

[(1, 79778860), (2, 39889430), (4, 19944715), (5, 15955772), (7, 11396980), (10, 7977886), (14, 5698490), (20, 3988943), (28, 2849245), (35, 2279396), (49, 1628140), (70, 1139698), (98, 814070), (127, 628180), (140, 569849), (196, 407035), (245, 325628), (254, 314090), (490, 162814), (508, 157045), (635, 125636), (641, 124460), (889, 89740), (980, 81407), (1270, 62818), (1282, 62230), (1778, 44870), (2540, 31409), (2564, 31115), (3205, 24892), (3556, 22435), (4445, 17948), (4487, 17780), (6223, 12820), (6410, 12446), (8890, 8974)]