19655640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{769}}^1$

素因数の和:857

約数の個数: 96

約数和(自身を含む): 64864800

約数和(自身を除く): 45209160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 71, 72, 90, 120, 142, 180, 213, 284, 355, 360, 426, 568, 639, 710, 769, 852, 1065, 1278, 1420, 1538, 1704, 2130, 2307, 2556, 2840, 3076, 3195, 3845, 4260, 4614, 5112, 6152, 6390, 6921, 7690, 8520, 9228, 11535, 12780, 13842, 15380, 18456, 23070, 25560, 27684, 30760, 34605, 46140, 54599, 55368, 69210, 92280, 109198, 138420, 163797, 218396, 272995, 276840, 327594, 436792, 491391, 545990, 655188, 818985, 982782, 1091980, 1310376, 1637970, 1965564, 2183960, 2456955, 3275940, 3931128, 4913910, 6551880, 9827820, 19655640]

約数ペア:

[(1, 19655640), (2, 9827820), (3, 6551880), (4, 4913910), (5, 3931128), (6, 3275940), (8, 2456955), (9, 2183960), (10, 1965564), (12, 1637970), (15, 1310376), (18, 1091980), (20, 982782), (24, 818985), (30, 655188), (36, 545990), (40, 491391), (45, 436792), (60, 327594), (71, 276840), (72, 272995), (90, 218396), (120, 163797), (142, 138420), (180, 109198), (213, 92280), (284, 69210), (355, 55368), (360, 54599), (426, 46140), (568, 34605), (639, 30760), (710, 27684), (769, 25560), (852, 23070), (1065, 18456), (1278, 15380), (1420, 13842), (1538, 12780), (1704, 11535), (2130, 9228), (2307, 8520), (2556, 7690), (2840, 6921), (3076, 6390), (3195, 6152), (3845, 5112), (4260, 4614)]