217591976

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:235

約数の個数: 128

約数和(自身を含む): 521717760

約数和(自身を除く): 304125784

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 31, 34, 56, 62, 68, 73, 101, 119, 124, 136, 146, 202, 217, 238, 248, 292, 404, 434, 476, 511, 527, 584, 707, 808, 868, 952, 1022, 1054, 1241, 1414, 1717, 1736, 2044, 2108, 2263, 2482, 2828, 3131, 3434, 3689, 4088, 4216, 4526, 4964, 5656, 6262, 6868, 7373, 7378, 8687, 9052, 9928, 12019, 12524, 13736, 14746, 14756, 15841, 17374, 18104, 21917, 24038, 25048, 29492, 29512, 31682, 34748, 38471, 43834, 48076, 51611, 53227, 58984, 63364, 69496, 76942, 87668, 96152, 103222, 106454, 125341, 126728, 153884, 175336, 206444, 212908, 228563, 250682, 269297, 307768, 372589, 412888, 425816, 457126, 501364, 538594, 745178, 877387, 914252, 1002728, 1077188, 1490356, 1599941, 1754774, 1828504, 2154376, 2980712, 3199882, 3509548, 3885571, 6399764, 7019096, 7771142, 12799528, 15542284, 27198997, 31084568, 54397994, 108795988, 217591976]

約数ペア:

[(1, 217591976), (2, 108795988), (4, 54397994), (7, 31084568), (8, 27198997), (14, 15542284), (17, 12799528), (28, 7771142), (31, 7019096), (34, 6399764), (56, 3885571), (62, 3509548), (68, 3199882), (73, 2980712), (101, 2154376), (119, 1828504), (124, 1754774), (136, 1599941), (146, 1490356), (202, 1077188), (217, 1002728), (238, 914252), (248, 877387), (292, 745178), (404, 538594), (434, 501364), (476, 457126), (511, 425816), (527, 412888), (584, 372589), (707, 307768), (808, 269297), (868, 250682), (952, 228563), (1022, 212908), (1054, 206444), (1241, 175336), (1414, 153884), (1717, 126728), (1736, 125341), (2044, 106454), (2108, 103222), (2263, 96152), (2482, 87668), (2828, 76942), (3131, 69496), (3434, 63364), (3689, 58984), (4088, 53227), (4216, 51611), (4526, 48076), (4964, 43834), (5656, 38471), (6262, 34748), (6868, 31682), (7373, 29512), (7378, 29492), (8687, 25048), (9052, 24038), (9928, 21917), (12019, 18104), (12524, 17374), (13736, 15841), (14746, 14756)]