30281020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{53}}^2$

素因数の和:140

約数の個数: 108

約数和(自身を含む): 82248264

約数和(自身を除く): 51967244

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 53, 55, 70, 77, 98, 106, 110, 140, 154, 196, 212, 220, 245, 265, 308, 371, 385, 490, 530, 539, 583, 742, 770, 980, 1060, 1078, 1166, 1484, 1540, 1855, 2156, 2332, 2597, 2695, 2809, 2915, 3710, 4081, 5194, 5390, 5618, 5830, 7420, 8162, 10388, 10780, 11236, 11660, 12985, 14045, 16324, 19663, 20405, 25970, 28090, 28567, 30899, 39326, 40810, 51940, 56180, 57134, 61798, 78652, 81620, 98315, 114268, 123596, 137641, 142835, 154495, 196630, 216293, 275282, 285670, 308990, 393260, 432586, 550564, 571340, 617980, 688205, 865172, 1081465, 1376410, 1514051, 2162930, 2752820, 3028102, 4325860, 6056204, 7570255, 15140510, 30281020]

約数ペア:

[(1, 30281020), (2, 15140510), (4, 7570255), (5, 6056204), (7, 4325860), (10, 3028102), (11, 2752820), (14, 2162930), (20, 1514051), (22, 1376410), (28, 1081465), (35, 865172), (44, 688205), (49, 617980), (53, 571340), (55, 550564), (70, 432586), (77, 393260), (98, 308990), (106, 285670), (110, 275282), (140, 216293), (154, 196630), (196, 154495), (212, 142835), (220, 137641), (245, 123596), (265, 114268), (308, 98315), (371, 81620), (385, 78652), (490, 61798), (530, 57134), (539, 56180), (583, 51940), (742, 40810), (770, 39326), (980, 30899), (1060, 28567), (1078, 28090), (1166, 25970), (1484, 20405), (1540, 19663), (1855, 16324), (2156, 14045), (2332, 12985), (2597, 11660), (2695, 11236), (2809, 10780), (2915, 10388), (3710, 8162), (4081, 7420), (5194, 5830), (5390, 5618)]