20417701980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{493897}}^1$

素因数の和:493975

約数の個数: 96

約数和(自身を含む): 62728997184

約数和(自身を除く): 42311295204

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 53, 60, 65, 78, 106, 130, 156, 159, 195, 212, 260, 265, 318, 390, 530, 636, 689, 780, 795, 1060, 1378, 1590, 2067, 2756, 3180, 3445, 4134, 6890, 8268, 10335, 13780, 20670, 41340, 493897, 987794, 1481691, 1975588, 2469485, 2963382, 4938970, 5926764, 6420661, 7408455, 9877940, 12841322, 14816910, 19261983, 25682644, 26176541, 29633820, 32103305, 38523966, 52353082, 64206610, 77047932, 78529623, 96309915, 104706164, 128413220, 130882705, 157059246, 192619830, 261765410, 314118492, 340295033, 385239660, 392648115, 523530820, 680590066, 785296230, 1020885099, 1361180132, 1570592460, 1701475165, 2041770198, 3402950330, 4083540396, 5104425495, 6805900660, 10208850990, 20417701980]

約数ペア:

[(1, 20417701980), (2, 10208850990), (3, 6805900660), (4, 5104425495), (5, 4083540396), (6, 3402950330), (10, 2041770198), (12, 1701475165), (13, 1570592460), (15, 1361180132), (20, 1020885099), (26, 785296230), (30, 680590066), (39, 523530820), (52, 392648115), (53, 385239660), (60, 340295033), (65, 314118492), (78, 261765410), (106, 192619830), (130, 157059246), (156, 130882705), (159, 128413220), (195, 104706164), (212, 96309915), (260, 78529623), (265, 77047932), (318, 64206610), (390, 52353082), (530, 38523966), (636, 32103305), (689, 29633820), (780, 26176541), (795, 25682644), (1060, 19261983), (1378, 14816910), (1590, 12841322), (2067, 9877940), (2756, 7408455), (3180, 6420661), (3445, 5926764), (4134, 4938970), (6890, 2963382), (8268, 2469485), (10335, 1975588), (13780, 1481691), (20670, 987794), (41340, 493897)]