249207140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1$

素因数の和:698

約数の個数: 144

約数和(自身を含む): 677827584

約数和(自身を除く): 428620444

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 49, 52, 62, 65, 70, 91, 98, 124, 130, 140, 155, 182, 196, 217, 245, 260, 310, 364, 403, 434, 455, 490, 620, 631, 637, 806, 868, 910, 980, 1085, 1262, 1274, 1519, 1612, 1820, 2015, 2170, 2524, 2548, 2821, 3038, 3155, 3185, 4030, 4340, 4417, 5642, 6076, 6310, 6370, 7595, 8060, 8203, 8834, 11284, 12620, 12740, 14105, 15190, 16406, 17668, 19561, 19747, 22085, 28210, 30380, 30919, 32812, 39122, 39494, 41015, 44170, 56420, 57421, 61838, 78244, 78988, 82030, 88340, 97805, 98735, 114842, 123676, 136927, 154595, 164060, 195610, 197470, 229684, 254293, 273854, 287105, 309190, 391220, 394940, 401947, 508586, 547708, 574210, 618380, 684635, 803894, 958489, 1017172, 1148420, 1271465, 1369270, 1607788, 1780051, 1916978, 2009735, 2542930, 2738540, 3560102, 3833956, 4019470, 4792445, 5085860, 7120204, 8038940, 8900255, 9584890, 12460357, 17800510, 19169780, 24920714, 35601020, 49841428, 62301785, 124603570, 249207140]

約数ペア:

[(1, 249207140), (2, 124603570), (4, 62301785), (5, 49841428), (7, 35601020), (10, 24920714), (13, 19169780), (14, 17800510), (20, 12460357), (26, 9584890), (28, 8900255), (31, 8038940), (35, 7120204), (49, 5085860), (52, 4792445), (62, 4019470), (65, 3833956), (70, 3560102), (91, 2738540), (98, 2542930), (124, 2009735), (130, 1916978), (140, 1780051), (155, 1607788), (182, 1369270), (196, 1271465), (217, 1148420), (245, 1017172), (260, 958489), (310, 803894), (364, 684635), (403, 618380), (434, 574210), (455, 547708), (490, 508586), (620, 401947), (631, 394940), (637, 391220), (806, 309190), (868, 287105), (910, 273854), (980, 254293), (1085, 229684), (1262, 197470), (1274, 195610), (1519, 164060), (1612, 154595), (1820, 136927), (2015, 123676), (2170, 114842), (2524, 98735), (2548, 97805), (2821, 88340), (3038, 82030), (3155, 78988), (3185, 78244), (4030, 61838), (4340, 57421), (4417, 56420), (5642, 44170), (6076, 41015), (6310, 39494), (6370, 39122), (7595, 32812), (8060, 30919), (8203, 30380), (8834, 28210), (11284, 22085), (12620, 19747), (12740, 19561), (14105, 17668), (15190, 16406)]