78655780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{967}}^1$

素因数の和:1073

約数の個数: 72

約数和(自身を含む): 194660928

約数和(自身を除く): 116005148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 83, 98, 140, 166, 196, 245, 332, 415, 490, 581, 830, 967, 980, 1162, 1660, 1934, 2324, 2905, 3868, 4067, 4835, 5810, 6769, 8134, 9670, 11620, 13538, 16268, 19340, 20335, 27076, 33845, 40670, 47383, 67690, 80261, 81340, 94766, 135380, 160522, 189532, 236915, 321044, 401305, 473830, 561827, 802610, 947660, 1123654, 1605220, 2247308, 2809135, 3932789, 5618270, 7865578, 11236540, 15731156, 19663945, 39327890, 78655780]

約数ペア:

[(1, 78655780), (2, 39327890), (4, 19663945), (5, 15731156), (7, 11236540), (10, 7865578), (14, 5618270), (20, 3932789), (28, 2809135), (35, 2247308), (49, 1605220), (70, 1123654), (83, 947660), (98, 802610), (140, 561827), (166, 473830), (196, 401305), (245, 321044), (332, 236915), (415, 189532), (490, 160522), (581, 135380), (830, 94766), (967, 81340), (980, 80261), (1162, 67690), (1660, 47383), (1934, 40670), (2324, 33845), (2905, 27076), (3868, 20335), (4067, 19340), (4835, 16268), (5810, 13538), (6769, 11620), (8134, 9670)]