20579940

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1657}}^1$

素因数の和:1698

約数の個数: 96

約数和(自身を含む): 66850560

約数和(自身を除く): 46270620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 69, 90, 92, 108, 115, 135, 138, 180, 207, 230, 270, 276, 345, 414, 460, 540, 621, 690, 828, 1035, 1242, 1380, 1657, 2070, 2484, 3105, 3314, 4140, 4971, 6210, 6628, 8285, 9942, 12420, 14913, 16570, 19884, 24855, 29826, 33140, 38111, 44739, 49710, 59652, 74565, 76222, 89478, 99420, 114333, 149130, 152444, 178956, 190555, 223695, 228666, 298260, 342999, 381110, 447390, 457332, 571665, 685998, 762220, 894780, 1028997, 1143330, 1371996, 1714995, 2057994, 2286660, 3429990, 4115988, 5144985, 6859980, 10289970, 20579940]

約数ペア:

[(1, 20579940), (2, 10289970), (3, 6859980), (4, 5144985), (5, 4115988), (6, 3429990), (9, 2286660), (10, 2057994), (12, 1714995), (15, 1371996), (18, 1143330), (20, 1028997), (23, 894780), (27, 762220), (30, 685998), (36, 571665), (45, 457332), (46, 447390), (54, 381110), (60, 342999), (69, 298260), (90, 228666), (92, 223695), (108, 190555), (115, 178956), (135, 152444), (138, 149130), (180, 114333), (207, 99420), (230, 89478), (270, 76222), (276, 74565), (345, 59652), (414, 49710), (460, 44739), (540, 38111), (621, 33140), (690, 29826), (828, 24855), (1035, 19884), (1242, 16570), (1380, 14913), (1657, 12420), (2070, 9942), (2484, 8285), (3105, 6628), (3314, 6210), (4140, 4971)]