243677980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{617}}^1$

素因数の和:684

約数の個数: 144

約数和(自身を含む): 662812416

約数和(自身を除く): 419134436

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, 617, 620, 637, 806, 868, 910, 980, 1085, 1234, 1274, 1519, 1612, 1820, 2015, 2170, 2468, 2548, 2821, 3038, 3085, 3185, 4030, 4319, 4340, 5642, 6076, 6170, 6370, 7595, 8021, 8060, 8638, 11284, 12340, 12740, 14105, 15190, 16042, 17276, 19127, 19747, 21595, 28210, 30233, 30380, 32084, 38254, 39494, 40105, 43190, 56147, 56420, 60466, 76508, 78988, 80210, 86380, 95635, 98735, 112294, 120932, 133889, 151165, 160420, 191270, 197470, 224588, 248651, 267778, 280735, 302330, 382540, 393029, 394940, 497302, 535556, 561470, 604660, 669445, 786058, 937223, 994604, 1122940, 1243255, 1338890, 1572116, 1740557, 1874446, 1965145, 2486510, 2677780, 3481114, 3748892, 3930290, 4686115, 4973020, 6962228, 7860580, 8702785, 9372230, 12183899, 17405570, 18744460, 24367798, 34811140, 48735596, 60919495, 121838990, 243677980]

約数ペア:

[(1, 243677980), (2, 121838990), (4, 60919495), (5, 48735596), (7, 34811140), (10, 24367798), (13, 18744460), (14, 17405570), (20, 12183899), (26, 9372230), (28, 8702785), (31, 7860580), (35, 6962228), (49, 4973020), (52, 4686115), (62, 3930290), (65, 3748892), (70, 3481114), (91, 2677780), (98, 2486510), (124, 1965145), (130, 1874446), (140, 1740557), (155, 1572116), (182, 1338890), (196, 1243255), (217, 1122940), (245, 994604), (260, 937223), (310, 786058), (364, 669445), (403, 604660), (434, 561470), (455, 535556), (490, 497302), (617, 394940), (620, 393029), (637, 382540), (806, 302330), (868, 280735), (910, 267778), (980, 248651), (1085, 224588), (1234, 197470), (1274, 191270), (1519, 160420), (1612, 151165), (1820, 133889), (2015, 120932), (2170, 112294), (2468, 98735), (2548, 95635), (2821, 86380), (3038, 80210), (3085, 78988), (3185, 76508), (4030, 60466), (4319, 56420), (4340, 56147), (5642, 43190), (6076, 40105), (6170, 39494), (6370, 38254), (7595, 32084), (8021, 30380), (8060, 30233), (8638, 28210), (11284, 21595), (12340, 19747), (12740, 19127), (14105, 17276), (15190, 16042)]