79878890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1439}}^1$

素因数の和:1527

約数の個数: 64

約数和(自身を含む): 179988480

約数和(自身を除く): 100109590

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 61, 65, 70, 91, 122, 130, 182, 305, 427, 455, 610, 793, 854, 910, 1439, 1586, 2135, 2878, 3965, 4270, 5551, 7195, 7930, 10073, 11102, 14390, 18707, 20146, 27755, 37414, 50365, 55510, 87779, 93535, 100730, 130949, 175558, 187070, 261898, 438895, 614453, 654745, 877790, 1141127, 1228906, 1309490, 2282254, 3072265, 5705635, 6144530, 7987889, 11411270, 15975778, 39939445, 79878890]

約数ペア:

[(1, 79878890), (2, 39939445), (5, 15975778), (7, 11411270), (10, 7987889), (13, 6144530), (14, 5705635), (26, 3072265), (35, 2282254), (61, 1309490), (65, 1228906), (70, 1141127), (91, 877790), (122, 654745), (130, 614453), (182, 438895), (305, 261898), (427, 187070), (455, 175558), (610, 130949), (793, 100730), (854, 93535), (910, 87779), (1439, 55510), (1586, 50365), (2135, 37414), (2878, 27755), (3965, 20146), (4270, 18707), (5551, 14390), (7195, 11102), (7930, 10073)]