311891868

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:512

約数の個数: 144

約数和(自身を含む): 880588800

約数和(自身を除く): 568696932

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 29, 31, 36, 46, 58, 62, 69, 87, 92, 93, 116, 124, 138, 174, 186, 207, 261, 276, 279, 348, 372, 414, 419, 522, 558, 667, 713, 828, 838, 899, 1044, 1116, 1257, 1334, 1426, 1676, 1798, 2001, 2139, 2514, 2668, 2697, 2852, 3596, 3771, 4002, 4278, 5028, 5394, 6003, 6417, 7542, 8004, 8091, 8556, 9637, 10788, 12006, 12151, 12834, 12989, 15084, 16182, 19274, 20677, 24012, 24302, 25668, 25978, 28911, 32364, 36453, 38548, 38967, 41354, 48604, 51956, 57822, 62031, 72906, 77934, 82708, 86733, 109359, 115644, 116901, 124062, 145812, 155868, 173466, 186093, 218718, 233802, 248124, 279473, 298747, 346932, 372186, 376681, 437436, 467604, 558946, 597494, 744372, 753362, 838419, 896241, 1117892, 1130043, 1194988, 1506724, 1676838, 1792482, 2260086, 2515257, 2688723, 3353676, 3390129, 3584964, 4520172, 5030514, 5377446, 6780258, 8663663, 10061028, 10754892, 13560516, 17327326, 25990989, 34654652, 51981978, 77972967, 103963956, 155945934, 311891868]

約数ペア:

[(1, 311891868), (2, 155945934), (3, 103963956), (4, 77972967), (6, 51981978), (9, 34654652), (12, 25990989), (18, 17327326), (23, 13560516), (29, 10754892), (31, 10061028), (36, 8663663), (46, 6780258), (58, 5377446), (62, 5030514), (69, 4520172), (87, 3584964), (92, 3390129), (93, 3353676), (116, 2688723), (124, 2515257), (138, 2260086), (174, 1792482), (186, 1676838), (207, 1506724), (261, 1194988), (276, 1130043), (279, 1117892), (348, 896241), (372, 838419), (414, 753362), (419, 744372), (522, 597494), (558, 558946), (667, 467604), (713, 437436), (828, 376681), (838, 372186), (899, 346932), (1044, 298747), (1116, 279473), (1257, 248124), (1334, 233802), (1426, 218718), (1676, 186093), (1798, 173466), (2001, 155868), (2139, 145812), (2514, 124062), (2668, 116901), (2697, 115644), (2852, 109359), (3596, 86733), (3771, 82708), (4002, 77934), (4278, 72906), (5028, 62031), (5394, 57822), (6003, 51956), (6417, 48604), (7542, 41354), (8004, 38967), (8091, 38548), (8556, 36453), (9637, 32364), (10788, 28911), (12006, 25978), (12151, 25668), (12834, 24302), (12989, 24012), (15084, 20677), (16182, 19274)]