19955880

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{7919}}^1$

素因数の和:7943

約数の個数: 96

約数和(自身を含む): 74131200

約数和(自身を除く): 54175320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 7919, 15838, 23757, 31676, 39595, 47514, 55433, 63352, 71271, 79190, 95028, 110866, 118785, 142542, 158380, 166299, 190056, 221732, 237570, 277165, 285084, 316760, 332598, 356355, 443464, 475140, 498897, 554330, 570168, 665196, 712710, 831495, 950280, 997794, 1108660, 1330392, 1425420, 1662990, 1995588, 2217320, 2494485, 2850840, 3325980, 3991176, 4988970, 6651960, 9977940, 19955880]

約数ペア:

[(1, 19955880), (2, 9977940), (3, 6651960), (4, 4988970), (5, 3991176), (6, 3325980), (7, 2850840), (8, 2494485), (9, 2217320), (10, 1995588), (12, 1662990), (14, 1425420), (15, 1330392), (18, 1108660), (20, 997794), (21, 950280), (24, 831495), (28, 712710), (30, 665196), (35, 570168), (36, 554330), (40, 498897), (42, 475140), (45, 443464), (56, 356355), (60, 332598), (63, 316760), (70, 285084), (72, 277165), (84, 237570), (90, 221732), (105, 190056), (120, 166299), (126, 158380), (140, 142542), (168, 118785), (180, 110866), (210, 95028), (252, 79190), (280, 71271), (315, 63352), (360, 55433), (420, 47514), (504, 39595), (630, 31676), (840, 23757), (1260, 15838), (2520, 7919)]