4019940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{971}}^1$

素因数の和:1009

約数の個数: 72

約数和(自身を含む): 12737088

約数和(自身を除く): 8717148

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 971, 1035, 1380, 1942, 2070, 2913, 3884, 4140, 4855, 5826, 8739, 9710, 11652, 14565, 17478, 19420, 22333, 29130, 34956, 43695, 44666, 58260, 66999, 87390, 89332, 111665, 133998, 174780, 200997, 223330, 267996, 334995, 401994, 446660, 669990, 803988, 1004985, 1339980, 2009970, 4019940]

約数ペア:

[(1, 4019940), (2, 2009970), (3, 1339980), (4, 1004985), (5, 803988), (6, 669990), (9, 446660), (10, 401994), (12, 334995), (15, 267996), (18, 223330), (20, 200997), (23, 174780), (30, 133998), (36, 111665), (45, 89332), (46, 87390), (60, 66999), (69, 58260), (90, 44666), (92, 43695), (115, 34956), (138, 29130), (180, 22333), (207, 19420), (230, 17478), (276, 14565), (345, 11652), (414, 9710), (460, 8739), (690, 5826), (828, 4855), (971, 4140), (1035, 3884), (1380, 2913), (1942, 2070)]