20945160

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{797}}^1$

素因数の和:887

約数の個数: 96

約数和(自身を含む): 69090840

約数和(自身を除く): 48145680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 73, 90, 120, 146, 180, 219, 292, 360, 365, 438, 584, 657, 730, 797, 876, 1095, 1314, 1460, 1594, 1752, 2190, 2391, 2628, 2920, 3188, 3285, 3985, 4380, 4782, 5256, 6376, 6570, 7173, 7970, 8760, 9564, 11955, 13140, 14346, 15940, 19128, 23910, 26280, 28692, 31880, 35865, 47820, 57384, 58181, 71730, 95640, 116362, 143460, 174543, 232724, 286920, 290905, 349086, 465448, 523629, 581810, 698172, 872715, 1047258, 1163620, 1396344, 1745430, 2094516, 2327240, 2618145, 3490860, 4189032, 5236290, 6981720, 10472580, 20945160]

約数ペア:

[(1, 20945160), (2, 10472580), (3, 6981720), (4, 5236290), (5, 4189032), (6, 3490860), (8, 2618145), (9, 2327240), (10, 2094516), (12, 1745430), (15, 1396344), (18, 1163620), (20, 1047258), (24, 872715), (30, 698172), (36, 581810), (40, 523629), (45, 465448), (60, 349086), (72, 290905), (73, 286920), (90, 232724), (120, 174543), (146, 143460), (180, 116362), (219, 95640), (292, 71730), (360, 58181), (365, 57384), (438, 47820), (584, 35865), (657, 31880), (730, 28692), (797, 26280), (876, 23910), (1095, 19128), (1314, 15940), (1460, 14346), (1594, 13140), (1752, 11955), (2190, 9564), (2391, 8760), (2628, 7970), (2920, 7173), (3188, 6570), (3285, 6376), (3985, 5256), (4380, 4782)]