128696540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{3203}}^1$

素因数の和:3267

約数の個数: 72

約数和(自身を含む): 322155792

約数和(自身を除く): 193459252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 2009, 2870, 3203, 4018, 5740, 6406, 8036, 10045, 12812, 16015, 20090, 22421, 32030, 40180, 44842, 64060, 89684, 112105, 131323, 156947, 224210, 262646, 313894, 448420, 525292, 627788, 656615, 784735, 919261, 1313230, 1569470, 1838522, 2626460, 3138940, 3677044, 4596305, 6434827, 9192610, 12869654, 18385220, 25739308, 32174135, 64348270, 128696540]

約数ペア:

[(1, 128696540), (2, 64348270), (4, 32174135), (5, 25739308), (7, 18385220), (10, 12869654), (14, 9192610), (20, 6434827), (28, 4596305), (35, 3677044), (41, 3138940), (49, 2626460), (70, 1838522), (82, 1569470), (98, 1313230), (140, 919261), (164, 784735), (196, 656615), (205, 627788), (245, 525292), (287, 448420), (410, 313894), (490, 262646), (574, 224210), (820, 156947), (980, 131323), (1148, 112105), (1435, 89684), (2009, 64060), (2870, 44842), (3203, 40180), (4018, 32030), (5740, 22421), (6406, 20090), (8036, 16015), (10045, 12812)]