64188880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1381}}^1$

素因数の和:1484

約数の個数: 80

約数和(自身を含む): 172738944

約数和(自身を除く): 108550064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 83, 112, 140, 166, 280, 332, 415, 560, 581, 664, 830, 1162, 1328, 1381, 1660, 2324, 2762, 2905, 3320, 4648, 5524, 5810, 6640, 6905, 9296, 9667, 11048, 11620, 13810, 19334, 22096, 23240, 27620, 38668, 46480, 48335, 55240, 77336, 96670, 110480, 114623, 154672, 193340, 229246, 386680, 458492, 573115, 773360, 802361, 916984, 1146230, 1604722, 1833968, 2292460, 3209444, 4011805, 4584920, 6418888, 8023610, 9169840, 12837776, 16047220, 32094440, 64188880]

約数ペア:

[(1, 64188880), (2, 32094440), (4, 16047220), (5, 12837776), (7, 9169840), (8, 8023610), (10, 6418888), (14, 4584920), (16, 4011805), (20, 3209444), (28, 2292460), (35, 1833968), (40, 1604722), (56, 1146230), (70, 916984), (80, 802361), (83, 773360), (112, 573115), (140, 458492), (166, 386680), (280, 229246), (332, 193340), (415, 154672), (560, 114623), (581, 110480), (664, 96670), (830, 77336), (1162, 55240), (1328, 48335), (1381, 46480), (1660, 38668), (2324, 27620), (2762, 23240), (2905, 22096), (3320, 19334), (4648, 13810), (5524, 11620), (5810, 11048), (6640, 9667), (6905, 9296)]