318321640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{31}}^2$

素因数の和:113

約数の個数: 216

約数和(自身を含む): 932218470

約数和(自身を除く): 613896830

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 40, 49, 52, 56, 62, 65, 70, 91, 98, 104, 124, 130, 140, 155, 169, 182, 196, 217, 245, 248, 260, 280, 310, 338, 364, 392, 403, 434, 455, 490, 520, 620, 637, 676, 728, 806, 845, 868, 910, 961, 980, 1085, 1183, 1240, 1274, 1352, 1519, 1612, 1690, 1736, 1820, 1922, 1960, 2015, 2170, 2366, 2548, 2821, 3038, 3185, 3224, 3380, 3640, 3844, 4030, 4340, 4732, 4805, 5096, 5239, 5642, 5915, 6076, 6370, 6727, 6760, 7595, 7688, 8060, 8281, 8680, 9464, 9610, 10478, 11284, 11830, 12152, 12493, 12740, 13454, 14105, 15190, 16120, 16562, 19220, 19747, 20956, 22568, 23660, 24986, 25480, 26195, 26908, 28210, 30380, 33124, 33635, 36673, 38440, 39494, 41405, 41912, 47089, 47320, 49972, 52390, 53816, 56420, 60760, 62465, 66248, 67270, 73346, 78988, 82810, 87451, 94178, 98735, 99944, 104780, 112840, 124930, 134540, 146692, 157976, 162409, 165620, 174902, 183365, 188356, 197470, 209560, 235445, 249860, 256711, 269080, 293384, 324818, 331240, 349804, 366730, 376712, 394940, 437255, 470890, 499720, 513422, 612157, 649636, 699608, 733460, 789880, 812045, 874510, 941780, 1026844, 1136863, 1224314, 1283555, 1299272, 1466920, 1624090, 1749020, 1883560, 2053688, 2273726, 2448628, 2567110, 3060785, 3248180, 3498040, 4547452, 4897256, 5134220, 5684315, 6121570, 6496360, 7958041, 9094904, 10268440, 11368630, 12243140, 15916082, 22737260, 24486280, 31832164, 39790205, 45474520, 63664328, 79580410, 159160820, 318321640]

約数ペア:

[(1, 318321640), (2, 159160820), (4, 79580410), (5, 63664328), (7, 45474520), (8, 39790205), (10, 31832164), (13, 24486280), (14, 22737260), (20, 15916082), (26, 12243140), (28, 11368630), (31, 10268440), (35, 9094904), (40, 7958041), (49, 6496360), (52, 6121570), (56, 5684315), (62, 5134220), (65, 4897256), (70, 4547452), (91, 3498040), (98, 3248180), (104, 3060785), (124, 2567110), (130, 2448628), (140, 2273726), (155, 2053688), (169, 1883560), (182, 1749020), (196, 1624090), (217, 1466920), (245, 1299272), (248, 1283555), (260, 1224314), (280, 1136863), (310, 1026844), (338, 941780), (364, 874510), (392, 812045), (403, 789880), (434, 733460), (455, 699608), (490, 649636), (520, 612157), (620, 513422), (637, 499720), (676, 470890), (728, 437255), (806, 394940), (845, 376712), (868, 366730), (910, 349804), (961, 331240), (980, 324818), (1085, 293384), (1183, 269080), (1240, 256711), (1274, 249860), (1352, 235445), (1519, 209560), (1612, 197470), (1690, 188356), (1736, 183365), (1820, 174902), (1922, 165620), (1960, 162409), (2015, 157976), (2170, 146692), (2366, 134540), (2548, 124930), (2821, 112840), (3038, 104780), (3185, 99944), (3224, 98735), (3380, 94178), (3640, 87451), (3844, 82810), (4030, 78988), (4340, 73346), (4732, 67270), (4805, 66248), (5096, 62465), (5239, 60760), (5642, 56420), (5915, 53816), (6076, 52390), (6370, 49972), (6727, 47320), (6760, 47089), (7595, 41912), (7688, 41405), (8060, 39494), (8281, 38440), (8680, 36673), (9464, 33635), (9610, 33124), (10478, 30380), (11284, 28210), (11830, 26908), (12152, 26195), (12493, 25480), (12740, 24986), (13454, 23660), (14105, 22568), (15190, 20956), (16120, 19747), (16562, 19220)]