20012580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{2269}}^1$

素因数の和:2298

約数の個数: 108

約数和(自身を含む): 70646940

約数和(自身を除く): 50634360

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2269, 2940, 4410, 4538, 6807, 8820, 9076, 11345, 13614, 15883, 20421, 22690, 27228, 31766, 34035, 40842, 45380, 47649, 63532, 68070, 79415, 81684, 95298, 102105, 111181, 136140, 142947, 158830, 190596, 204210, 222362, 238245, 285894, 317660, 333543, 408420, 444724, 476490, 555905, 571788, 667086, 714735, 952980, 1000629, 1111810, 1334172, 1429470, 1667715, 2001258, 2223620, 2858940, 3335430, 4002516, 5003145, 6670860, 10006290, 20012580]

約数ペア:

[(1, 20012580), (2, 10006290), (3, 6670860), (4, 5003145), (5, 4002516), (6, 3335430), (7, 2858940), (9, 2223620), (10, 2001258), (12, 1667715), (14, 1429470), (15, 1334172), (18, 1111810), (20, 1000629), (21, 952980), (28, 714735), (30, 667086), (35, 571788), (36, 555905), (42, 476490), (45, 444724), (49, 408420), (60, 333543), (63, 317660), (70, 285894), (84, 238245), (90, 222362), (98, 204210), (105, 190596), (126, 158830), (140, 142947), (147, 136140), (180, 111181), (196, 102105), (210, 95298), (245, 81684), (252, 79415), (294, 68070), (315, 63532), (420, 47649), (441, 45380), (490, 40842), (588, 34035), (630, 31766), (735, 27228), (882, 22690), (980, 20421), (1260, 15883), (1470, 13614), (1764, 11345), (2205, 9076), (2269, 8820), (2940, 6807), (4410, 4538)]