78638140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{2767}}^1$

素因数の和:2819

約数の個数: 72

約数和(自身を含む): 198797760

約数和(自身を除く): 120159620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 406, 490, 580, 812, 980, 1015, 1421, 2030, 2767, 2842, 4060, 5534, 5684, 7105, 11068, 13835, 14210, 19369, 27670, 28420, 38738, 55340, 77476, 80243, 96845, 135583, 160486, 193690, 271166, 320972, 387380, 401215, 542332, 561701, 677915, 802430, 1123402, 1355830, 1604860, 2246804, 2711660, 2808505, 3931907, 5617010, 7863814, 11234020, 15727628, 19659535, 39319070, 78638140]

約数ペア:

[(1, 78638140), (2, 39319070), (4, 19659535), (5, 15727628), (7, 11234020), (10, 7863814), (14, 5617010), (20, 3931907), (28, 2808505), (29, 2711660), (35, 2246804), (49, 1604860), (58, 1355830), (70, 1123402), (98, 802430), (116, 677915), (140, 561701), (145, 542332), (196, 401215), (203, 387380), (245, 320972), (290, 271166), (406, 193690), (490, 160486), (580, 135583), (812, 96845), (980, 80243), (1015, 77476), (1421, 55340), (2030, 38738), (2767, 28420), (2842, 27670), (4060, 19369), (5534, 14210), (5684, 13835), (7105, 11068)]