20963280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6719}}^1$

素因数の和:6748

約数の個数: 80

約数和(自身を含む): 69995520

約数和(自身を除く): 49032240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6719, 13438, 20157, 26876, 33595, 40314, 53752, 67190, 80628, 87347, 100785, 107504, 134380, 161256, 174694, 201570, 262041, 268760, 322512, 349388, 403140, 436735, 524082, 537520, 698776, 806280, 873470, 1048164, 1310205, 1397552, 1612560, 1746940, 2096328, 2620410, 3493880, 4192656, 5240820, 6987760, 10481640, 20963280]

約数ペア:

[(1, 20963280), (2, 10481640), (3, 6987760), (4, 5240820), (5, 4192656), (6, 3493880), (8, 2620410), (10, 2096328), (12, 1746940), (13, 1612560), (15, 1397552), (16, 1310205), (20, 1048164), (24, 873470), (26, 806280), (30, 698776), (39, 537520), (40, 524082), (48, 436735), (52, 403140), (60, 349388), (65, 322512), (78, 268760), (80, 262041), (104, 201570), (120, 174694), (130, 161256), (156, 134380), (195, 107504), (208, 100785), (240, 87347), (260, 80628), (312, 67190), (390, 53752), (520, 40314), (624, 33595), (780, 26876), (1040, 20157), (1560, 13438), (3120, 6719)]