278326370

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:376

約数の個数: 96

約数和(自身を含む): 612251136

約数和(自身を除く): 333924766

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 49, 62, 70, 73, 98, 146, 155, 217, 245, 251, 310, 365, 434, 490, 502, 511, 730, 1022, 1085, 1255, 1519, 1757, 2170, 2263, 2510, 2555, 3038, 3514, 3577, 4526, 5110, 7154, 7595, 7781, 8785, 11315, 12299, 15190, 15562, 15841, 17570, 17885, 18323, 22630, 24598, 31682, 35770, 36646, 38905, 54467, 61495, 77810, 79205, 91615, 108934, 110887, 122990, 128261, 158410, 183230, 221774, 256522, 272335, 381269, 544670, 554435, 568013, 641305, 762538, 897827, 1108870, 1136026, 1282610, 1795654, 1906345, 2840065, 3812690, 3976091, 4489135, 5680130, 7952182, 8978270, 19880455, 27832637, 39760910, 55665274, 139163185, 278326370]

約数ペア:

[(1, 278326370), (2, 139163185), (5, 55665274), (7, 39760910), (10, 27832637), (14, 19880455), (31, 8978270), (35, 7952182), (49, 5680130), (62, 4489135), (70, 3976091), (73, 3812690), (98, 2840065), (146, 1906345), (155, 1795654), (217, 1282610), (245, 1136026), (251, 1108870), (310, 897827), (365, 762538), (434, 641305), (490, 568013), (502, 554435), (511, 544670), (730, 381269), (1022, 272335), (1085, 256522), (1255, 221774), (1519, 183230), (1757, 158410), (2170, 128261), (2263, 122990), (2510, 110887), (2555, 108934), (3038, 91615), (3514, 79205), (3577, 77810), (4526, 61495), (5110, 54467), (7154, 38905), (7595, 36646), (7781, 35770), (8785, 31682), (11315, 24598), (12299, 22630), (15190, 18323), (15562, 17885), (15841, 17570)]