80443220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{2557}}^1$

素因数の和:2601

約数の個数: 72

約数和(自身を含む): 200045832

約数和(自身を除く): 119602612

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 121, 130, 143, 220, 242, 260, 286, 484, 572, 605, 715, 1210, 1430, 1573, 2420, 2557, 2860, 3146, 5114, 6292, 7865, 10228, 12785, 15730, 25570, 28127, 31460, 33241, 51140, 56254, 66482, 112508, 132964, 140635, 166205, 281270, 309397, 332410, 365651, 562540, 618794, 664820, 731302, 1237588, 1462604, 1546985, 1828255, 3093970, 3656510, 4022161, 6187940, 7313020, 8044322, 16088644, 20110805, 40221610, 80443220]

約数ペア:

[(1, 80443220), (2, 40221610), (4, 20110805), (5, 16088644), (10, 8044322), (11, 7313020), (13, 6187940), (20, 4022161), (22, 3656510), (26, 3093970), (44, 1828255), (52, 1546985), (55, 1462604), (65, 1237588), (110, 731302), (121, 664820), (130, 618794), (143, 562540), (220, 365651), (242, 332410), (260, 309397), (286, 281270), (484, 166205), (572, 140635), (605, 132964), (715, 112508), (1210, 66482), (1430, 56254), (1573, 51140), (2420, 33241), (2557, 31460), (2860, 28127), (3146, 25570), (5114, 15730), (6292, 12785), (7865, 10228)]