78773420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{757}}^1$

素因数の和:831

約数の個数: 72

約数和(自身を含む): 186304272

約数和(自身を除く): 107530852

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 121, 172, 215, 220, 242, 430, 473, 484, 605, 757, 860, 946, 1210, 1514, 1892, 2365, 2420, 3028, 3785, 4730, 5203, 7570, 8327, 9460, 10406, 15140, 16654, 20812, 26015, 32551, 33308, 41635, 52030, 65102, 83270, 91597, 104060, 130204, 162755, 166540, 183194, 325510, 358061, 366388, 457985, 651020, 716122, 915970, 1432244, 1790305, 1831940, 3580610, 3938671, 7161220, 7877342, 15754684, 19693355, 39386710, 78773420]

約数ペア:

[(1, 78773420), (2, 39386710), (4, 19693355), (5, 15754684), (10, 7877342), (11, 7161220), (20, 3938671), (22, 3580610), (43, 1831940), (44, 1790305), (55, 1432244), (86, 915970), (110, 716122), (121, 651020), (172, 457985), (215, 366388), (220, 358061), (242, 325510), (430, 183194), (473, 166540), (484, 162755), (605, 130204), (757, 104060), (860, 91597), (946, 83270), (1210, 65102), (1514, 52030), (1892, 41635), (2365, 33308), (2420, 32551), (3028, 26015), (3785, 20812), (4730, 16654), (5203, 15140), (7570, 10406), (8327, 9460)]