209620180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1723}}^1$

素因数の和:1829

約数の個数: 96

約数和(自身を含む): 556093440

約数和(自身を除く): 346473260

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 79, 110, 140, 154, 158, 220, 308, 316, 385, 395, 553, 770, 790, 869, 1106, 1540, 1580, 1723, 1738, 2212, 2765, 3446, 3476, 4345, 5530, 6083, 6892, 8615, 8690, 11060, 12061, 12166, 17230, 17380, 18953, 24122, 24332, 30415, 34460, 37906, 48244, 60305, 60830, 75812, 94765, 120610, 121660, 132671, 136117, 189530, 241220, 265342, 272234, 379060, 530684, 544468, 663355, 680585, 952819, 1326710, 1361170, 1497287, 1905638, 2653420, 2722340, 2994574, 3811276, 4764095, 5989148, 7486435, 9528190, 10481009, 14972870, 19056380, 20962018, 29945740, 41924036, 52405045, 104810090, 209620180]

約数ペア:

[(1, 209620180), (2, 104810090), (4, 52405045), (5, 41924036), (7, 29945740), (10, 20962018), (11, 19056380), (14, 14972870), (20, 10481009), (22, 9528190), (28, 7486435), (35, 5989148), (44, 4764095), (55, 3811276), (70, 2994574), (77, 2722340), (79, 2653420), (110, 1905638), (140, 1497287), (154, 1361170), (158, 1326710), (220, 952819), (308, 680585), (316, 663355), (385, 544468), (395, 530684), (553, 379060), (770, 272234), (790, 265342), (869, 241220), (1106, 189530), (1540, 136117), (1580, 132671), (1723, 121660), (1738, 120610), (2212, 94765), (2765, 75812), (3446, 60830), (3476, 60305), (4345, 48244), (5530, 37906), (6083, 34460), (6892, 30415), (8615, 24332), (8690, 24122), (11060, 18953), (12061, 17380), (12166, 17230)]