20512887780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4440019}}^1$

素因数の和:4440049

約数の個数: 96

約数和(自身を含む): 71608642560

約数和(自身を除く): 51095754780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 132, 140, 154, 165, 210, 220, 231, 308, 330, 385, 420, 462, 660, 770, 924, 1155, 1540, 2310, 4620, 4440019, 8880038, 13320057, 17760076, 22200095, 26640114, 31080133, 44400190, 48840209, 53280228, 62160266, 66600285, 88800380, 93240399, 97680418, 124320532, 133200570, 146520627, 155400665, 186480798, 195360836, 244201045, 266401140, 293041254, 310801330, 341881463, 372961596, 466201995, 488402090, 586082508, 621602660, 683762926, 732603135, 932403990, 976804180, 1025644389, 1367525852, 1465206270, 1709407315, 1864807980, 2051288778, 2930412540, 3418814630, 4102577556, 5128221945, 6837629260, 10256443890, 20512887780]

約数ペア:

[(1, 20512887780), (2, 10256443890), (3, 6837629260), (4, 5128221945), (5, 4102577556), (6, 3418814630), (7, 2930412540), (10, 2051288778), (11, 1864807980), (12, 1709407315), (14, 1465206270), (15, 1367525852), (20, 1025644389), (21, 976804180), (22, 932403990), (28, 732603135), (30, 683762926), (33, 621602660), (35, 586082508), (42, 488402090), (44, 466201995), (55, 372961596), (60, 341881463), (66, 310801330), (70, 293041254), (77, 266401140), (84, 244201045), (105, 195360836), (110, 186480798), (132, 155400665), (140, 146520627), (154, 133200570), (165, 124320532), (210, 97680418), (220, 93240399), (231, 88800380), (308, 66600285), (330, 62160266), (385, 53280228), (420, 48840209), (462, 44400190), (660, 31080133), (770, 26640114), (924, 22200095), (1155, 17760076), (1540, 13320057), (2310, 8880038), (4620, 4440019)]