251016920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:310

約数の個数: 192

約数和(自身を含む): 735436800

約数和(自身を除く): 484419880

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 31, 35, 40, 44, 55, 56, 62, 70, 77, 88, 110, 121, 124, 140, 154, 155, 217, 220, 239, 242, 248, 280, 308, 310, 341, 385, 434, 440, 478, 484, 605, 616, 620, 682, 770, 847, 868, 956, 968, 1085, 1195, 1210, 1240, 1364, 1540, 1673, 1694, 1705, 1736, 1912, 2170, 2387, 2390, 2420, 2629, 2728, 3080, 3346, 3388, 3410, 3751, 4235, 4340, 4774, 4780, 4840, 5258, 6692, 6776, 6820, 7409, 7502, 8365, 8470, 8680, 9548, 9560, 10516, 11935, 13145, 13384, 13640, 14818, 15004, 16730, 16940, 18403, 18755, 19096, 21032, 23870, 26257, 26290, 28919, 29636, 30008, 33460, 33880, 36806, 37045, 37510, 47740, 51863, 52514, 52580, 57838, 59272, 66920, 73612, 74090, 75020, 81499, 92015, 95480, 103726, 105028, 105160, 115676, 131285, 144595, 147224, 148180, 150040, 162998, 184030, 202433, 207452, 210056, 231352, 259315, 262570, 289190, 296360, 325996, 368060, 404866, 407495, 414904, 518630, 525140, 570493, 578380, 651992, 736120, 809732, 814990, 896489, 1012165, 1037260, 1050280, 1140986, 1156760, 1619464, 1629980, 1792978, 2024330, 2074520, 2281972, 2852465, 3259960, 3585956, 4048660, 4482445, 4563944, 5704930, 6275423, 7171912, 8097320, 8964890, 11409860, 12550846, 17929780, 22819720, 25101692, 31377115, 35859560, 50203384, 62754230, 125508460, 251016920]

約数ペア:

[(1, 251016920), (2, 125508460), (4, 62754230), (5, 50203384), (7, 35859560), (8, 31377115), (10, 25101692), (11, 22819720), (14, 17929780), (20, 12550846), (22, 11409860), (28, 8964890), (31, 8097320), (35, 7171912), (40, 6275423), (44, 5704930), (55, 4563944), (56, 4482445), (62, 4048660), (70, 3585956), (77, 3259960), (88, 2852465), (110, 2281972), (121, 2074520), (124, 2024330), (140, 1792978), (154, 1629980), (155, 1619464), (217, 1156760), (220, 1140986), (239, 1050280), (242, 1037260), (248, 1012165), (280, 896489), (308, 814990), (310, 809732), (341, 736120), (385, 651992), (434, 578380), (440, 570493), (478, 525140), (484, 518630), (605, 414904), (616, 407495), (620, 404866), (682, 368060), (770, 325996), (847, 296360), (868, 289190), (956, 262570), (968, 259315), (1085, 231352), (1195, 210056), (1210, 207452), (1240, 202433), (1364, 184030), (1540, 162998), (1673, 150040), (1694, 148180), (1705, 147224), (1736, 144595), (1912, 131285), (2170, 115676), (2387, 105160), (2390, 105028), (2420, 103726), (2629, 95480), (2728, 92015), (3080, 81499), (3346, 75020), (3388, 74090), (3410, 73612), (3751, 66920), (4235, 59272), (4340, 57838), (4774, 52580), (4780, 52514), (4840, 51863), (5258, 47740), (6692, 37510), (6776, 37045), (6820, 36806), (7409, 33880), (7502, 33460), (8365, 30008), (8470, 29636), (8680, 28919), (9548, 26290), (9560, 26257), (10516, 23870), (11935, 21032), (13145, 19096), (13384, 18755), (13640, 18403), (14818, 16940), (15004, 16730)]