28780710

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4421}}^1$

素因数の和:4469

約数の個数: 64

約数和(自身を含む): 81506304

約数和(自身を除く): 52725594

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 62, 70, 93, 105, 155, 186, 210, 217, 310, 434, 465, 651, 930, 1085, 1302, 2170, 3255, 4421, 6510, 8842, 13263, 22105, 26526, 30947, 44210, 61894, 66315, 92841, 132630, 137051, 154735, 185682, 274102, 309470, 411153, 464205, 685255, 822306, 928410, 959357, 1370510, 1918714, 2055765, 2878071, 4111530, 4796785, 5756142, 9593570, 14390355, 28780710]

約数ペア:

[(1, 28780710), (2, 14390355), (3, 9593570), (5, 5756142), (6, 4796785), (7, 4111530), (10, 2878071), (14, 2055765), (15, 1918714), (21, 1370510), (30, 959357), (31, 928410), (35, 822306), (42, 685255), (62, 464205), (70, 411153), (93, 309470), (105, 274102), (155, 185682), (186, 154735), (210, 137051), (217, 132630), (310, 92841), (434, 66315), (465, 61894), (651, 44210), (930, 30947), (1085, 26526), (1302, 22105), (2170, 13263), (3255, 8842), (4421, 6510)]