278375790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3257}}^1$

素因数の和:3322

約数の個数: 128

約数和(自身を含む): 855733248

約数和(自身を除く): 577357458

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 37, 42, 55, 66, 70, 74, 77, 105, 110, 111, 154, 165, 185, 210, 222, 231, 259, 330, 370, 385, 407, 462, 518, 555, 770, 777, 814, 1110, 1155, 1221, 1295, 1554, 2035, 2310, 2442, 2590, 2849, 3257, 3885, 4070, 5698, 6105, 6514, 7770, 8547, 9771, 12210, 14245, 16285, 17094, 19542, 22799, 28490, 32570, 35827, 42735, 45598, 48855, 68397, 71654, 85470, 97710, 107481, 113995, 120509, 136794, 179135, 214962, 227990, 241018, 250789, 341985, 358270, 361527, 501578, 537405, 602545, 683970, 723054, 752367, 843563, 1074810, 1205090, 1253945, 1325599, 1504734, 1687126, 1807635, 2507890, 2530689, 2651198, 3615270, 3761835, 3976797, 4217815, 5061378, 6627995, 7523670, 7953594, 8435630, 9279193, 12653445, 13255990, 18558386, 19883985, 25306890, 27837579, 39767970, 46395965, 55675158, 92791930, 139187895, 278375790]

約数ペア:

[(1, 278375790), (2, 139187895), (3, 92791930), (5, 55675158), (6, 46395965), (7, 39767970), (10, 27837579), (11, 25306890), (14, 19883985), (15, 18558386), (21, 13255990), (22, 12653445), (30, 9279193), (33, 8435630), (35, 7953594), (37, 7523670), (42, 6627995), (55, 5061378), (66, 4217815), (70, 3976797), (74, 3761835), (77, 3615270), (105, 2651198), (110, 2530689), (111, 2507890), (154, 1807635), (165, 1687126), (185, 1504734), (210, 1325599), (222, 1253945), (231, 1205090), (259, 1074810), (330, 843563), (370, 752367), (385, 723054), (407, 683970), (462, 602545), (518, 537405), (555, 501578), (770, 361527), (777, 358270), (814, 341985), (1110, 250789), (1155, 241018), (1221, 227990), (1295, 214962), (1554, 179135), (2035, 136794), (2310, 120509), (2442, 113995), (2590, 107481), (2849, 97710), (3257, 85470), (3885, 71654), (4070, 68397), (5698, 48855), (6105, 45598), (6514, 42735), (7770, 35827), (8547, 32570), (9771, 28490), (12210, 22799), (14245, 19542), (16285, 17094)]