278495396788

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{433}}^1\times {\mathrm{1303}}^1$

素因数の和:1842

約数の個数: 144

約数和(自身を含む): 603233446144

約数和(自身を除く): 324738049356

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 61, 68, 119, 122, 238, 244, 289, 427, 433, 476, 578, 854, 866, 1037, 1156, 1303, 1708, 1732, 2023, 2074, 2606, 3031, 4046, 4148, 5212, 6062, 7259, 7361, 8092, 9121, 12124, 14518, 14722, 17629, 18242, 22151, 26413, 29036, 29444, 35258, 36484, 44302, 51527, 52826, 70516, 79483, 88604, 103054, 105652, 123403, 125137, 155057, 158966, 184891, 206108, 246806, 250274, 310114, 317932, 369782, 376567, 449021, 493612, 500548, 556381, 564199, 620228, 739564, 753134, 875959, 898042, 1112762, 1128398, 1351211, 1506268, 1751918, 1796084, 2225524, 2256796, 2635969, 2702422, 3143147, 3503836, 3949393, 5271938, 5404844, 6286294, 7633357, 7898786, 9458477, 9591383, 10543876, 12572588, 15266714, 15797572, 18916954, 19182766, 22970587, 30533428, 34416139, 37833908, 38365532, 45941174, 53433499, 67139681, 68832278, 91882348, 106866998, 134279362, 137664556, 160794109, 163053511, 213733996, 240912973, 268558724, 321588218, 326107022, 481825946, 585074363, 643176436, 652214044, 963651892, 1141374577, 1170148726, 2282749154, 2340297452, 4095520541, 4565498308, 8191041082, 9946264171, 16382082164, 19892528342, 39785056684, 69623849197, 139247698394, 278495396788]

約数ペア:

[(1, 278495396788), (2, 139247698394), (4, 69623849197), (7, 39785056684), (14, 19892528342), (17, 16382082164), (28, 9946264171), (34, 8191041082), (61, 4565498308), (68, 4095520541), (119, 2340297452), (122, 2282749154), (238, 1170148726), (244, 1141374577), (289, 963651892), (427, 652214044), (433, 643176436), (476, 585074363), (578, 481825946), (854, 326107022), (866, 321588218), (1037, 268558724), (1156, 240912973), (1303, 213733996), (1708, 163053511), (1732, 160794109), (2023, 137664556), (2074, 134279362), (2606, 106866998), (3031, 91882348), (4046, 68832278), (4148, 67139681), (5212, 53433499), (6062, 45941174), (7259, 38365532), (7361, 37833908), (8092, 34416139), (9121, 30533428), (12124, 22970587), (14518, 19182766), (14722, 18916954), (17629, 15797572), (18242, 15266714), (22151, 12572588), (26413, 10543876), (29036, 9591383), (29444, 9458477), (35258, 7898786), (36484, 7633357), (44302, 6286294), (51527, 5404844), (52826, 5271938), (70516, 3949393), (79483, 3503836), (88604, 3143147), (103054, 2702422), (105652, 2635969), (123403, 2256796), (125137, 2225524), (155057, 1796084), (158966, 1751918), (184891, 1506268), (206108, 1351211), (246806, 1128398), (250274, 1112762), (310114, 898042), (317932, 875959), (369782, 753134), (376567, 739564), (449021, 620228), (493612, 564199), (500548, 556381)]