209940010

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{97}}^1\times {\mathrm{631}}^1$

素因数の和:756

約数の個数: 64

約数和(自身を含む): 445939200

約数和(自身を除く): 235999190

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 97, 98, 194, 245, 343, 485, 490, 631, 679, 686, 970, 1262, 1358, 1715, 3155, 3395, 3430, 4417, 4753, 6310, 6790, 8834, 9506, 22085, 23765, 30919, 33271, 44170, 47530, 61207, 61838, 66542, 122414, 154595, 166355, 216433, 306035, 309190, 332710, 428449, 432866, 612070, 856898, 1082165, 2142245, 2164330, 2999143, 4284490, 5998286, 14995715, 20994001, 29991430, 41988002, 104970005, 209940010]

約数ペア:

[(1, 209940010), (2, 104970005), (5, 41988002), (7, 29991430), (10, 20994001), (14, 14995715), (35, 5998286), (49, 4284490), (70, 2999143), (97, 2164330), (98, 2142245), (194, 1082165), (245, 856898), (343, 612070), (485, 432866), (490, 428449), (631, 332710), (679, 309190), (686, 306035), (970, 216433), (1262, 166355), (1358, 154595), (1715, 122414), (3155, 66542), (3395, 61838), (3430, 61207), (4417, 47530), (4753, 44170), (6310, 33271), (6790, 30919), (8834, 23765), (9506, 22085)]