85219940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{1327}}^1$

素因数の和:1381

約数の個数: 72

約数和(自身を含む): 204140160

約数和(自身を除く): 118920220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 169, 190, 247, 260, 338, 380, 494, 676, 845, 988, 1235, 1327, 1690, 2470, 2654, 3211, 3380, 4940, 5308, 6422, 6635, 12844, 13270, 16055, 17251, 25213, 26540, 32110, 34502, 50426, 64220, 69004, 86255, 100852, 126065, 172510, 224263, 252130, 327769, 345020, 448526, 504260, 655538, 897052, 1121315, 1311076, 1638845, 2242630, 3277690, 4260997, 4485260, 6555380, 8521994, 17043988, 21304985, 42609970, 85219940]

約数ペア:

[(1, 85219940), (2, 42609970), (4, 21304985), (5, 17043988), (10, 8521994), (13, 6555380), (19, 4485260), (20, 4260997), (26, 3277690), (38, 2242630), (52, 1638845), (65, 1311076), (76, 1121315), (95, 897052), (130, 655538), (169, 504260), (190, 448526), (247, 345020), (260, 327769), (338, 252130), (380, 224263), (494, 172510), (676, 126065), (845, 100852), (988, 86255), (1235, 69004), (1327, 64220), (1690, 50426), (2470, 34502), (2654, 32110), (3211, 26540), (3380, 25213), (4940, 17251), (5308, 16055), (6422, 13270), (6635, 12844)]