19823960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{569}}^1$

素因数の和:660

約数の個数: 64

約数和(自身を含む): 48837600

約数和(自身を除く): 29013640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 104, 130, 134, 260, 268, 335, 520, 536, 569, 670, 871, 1138, 1340, 1742, 2276, 2680, 2845, 3484, 4355, 4552, 5690, 6968, 7397, 8710, 11380, 14794, 17420, 22760, 29588, 34840, 36985, 38123, 59176, 73970, 76246, 147940, 152492, 190615, 295880, 304984, 381230, 495599, 762460, 991198, 1524920, 1982396, 2477995, 3964792, 4955990, 9911980, 19823960]

約数ペア:

[(1, 19823960), (2, 9911980), (4, 4955990), (5, 3964792), (8, 2477995), (10, 1982396), (13, 1524920), (20, 991198), (26, 762460), (40, 495599), (52, 381230), (65, 304984), (67, 295880), (104, 190615), (130, 152492), (134, 147940), (260, 76246), (268, 73970), (335, 59176), (520, 38123), (536, 36985), (569, 34840), (670, 29588), (871, 22760), (1138, 17420), (1340, 14794), (1742, 11380), (2276, 8710), (2680, 7397), (2845, 6968), (3484, 5690), (4355, 4552)]