20309640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{277}}^1$

素因数の和:351

約数の個数: 128

約数和(自身を含む): 67253760

約数和(自身を除く): 46944120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 47, 52, 60, 65, 78, 94, 104, 120, 130, 141, 156, 188, 195, 235, 260, 277, 282, 312, 376, 390, 470, 520, 554, 564, 611, 705, 780, 831, 940, 1108, 1128, 1222, 1385, 1410, 1560, 1662, 1833, 1880, 2216, 2444, 2770, 2820, 3055, 3324, 3601, 3666, 4155, 4888, 5540, 5640, 6110, 6648, 7202, 7332, 8310, 9165, 10803, 11080, 12220, 13019, 14404, 14664, 16620, 18005, 18330, 21606, 24440, 26038, 28808, 33240, 36010, 36660, 39057, 43212, 52076, 54015, 65095, 72020, 73320, 78114, 86424, 104152, 108030, 130190, 144040, 156228, 169247, 195285, 216060, 260380, 312456, 338494, 390570, 432120, 507741, 520760, 676988, 781140, 846235, 1015482, 1353976, 1562280, 1692470, 2030964, 2538705, 3384940, 4061928, 5077410, 6769880, 10154820, 20309640]

約数ペア:

[(1, 20309640), (2, 10154820), (3, 6769880), (4, 5077410), (5, 4061928), (6, 3384940), (8, 2538705), (10, 2030964), (12, 1692470), (13, 1562280), (15, 1353976), (20, 1015482), (24, 846235), (26, 781140), (30, 676988), (39, 520760), (40, 507741), (47, 432120), (52, 390570), (60, 338494), (65, 312456), (78, 260380), (94, 216060), (104, 195285), (120, 169247), (130, 156228), (141, 144040), (156, 130190), (188, 108030), (195, 104152), (235, 86424), (260, 78114), (277, 73320), (282, 72020), (312, 65095), (376, 54015), (390, 52076), (470, 43212), (520, 39057), (554, 36660), (564, 36010), (611, 33240), (705, 28808), (780, 26038), (831, 24440), (940, 21606), (1108, 18330), (1128, 18005), (1222, 16620), (1385, 14664), (1410, 14404), (1560, 13019), (1662, 12220), (1833, 11080), (1880, 10803), (2216, 9165), (2444, 8310), (2770, 7332), (2820, 7202), (3055, 6648), (3324, 6110), (3601, 5640), (3666, 5540), (4155, 4888)]