287439880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1$

素因数の和:456

約数の個数: 192

約数和(自身を含む): 840294000

約数和(自身を除く): 552854120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 29, 35, 40, 49, 52, 56, 58, 65, 70, 91, 98, 104, 116, 130, 140, 145, 182, 196, 203, 232, 245, 260, 280, 290, 364, 377, 389, 392, 406, 455, 490, 520, 580, 637, 728, 754, 778, 812, 910, 980, 1015, 1160, 1274, 1421, 1508, 1556, 1624, 1820, 1885, 1945, 1960, 2030, 2548, 2639, 2723, 2842, 3016, 3112, 3185, 3640, 3770, 3890, 4060, 5057, 5096, 5278, 5446, 5684, 6370, 7105, 7540, 7780, 8120, 10114, 10556, 10892, 11281, 11368, 12740, 13195, 13615, 14210, 15080, 15560, 18473, 19061, 20228, 21112, 21784, 22562, 25285, 25480, 26390, 27230, 28420, 35399, 36946, 38122, 40456, 45124, 50570, 52780, 54460, 56405, 56840, 70798, 73892, 76244, 78967, 90248, 92365, 95305, 101140, 105560, 108920, 112810, 141596, 146653, 147784, 152488, 157934, 176995, 184730, 190610, 202280, 225620, 247793, 283192, 293306, 315868, 353990, 369460, 381220, 394835, 451240, 495586, 552769, 586612, 631736, 707980, 733265, 738920, 762440, 789670, 991172, 1026571, 1105538, 1173224, 1238965, 1415960, 1466530, 1579340, 1982344, 2053142, 2211076, 2477930, 2763845, 2933060, 3158680, 4106284, 4422152, 4955860, 5132855, 5527690, 5866120, 7185997, 8212568, 9911720, 10265710, 11055380, 14371994, 20531420, 22110760, 28743988, 35929985, 41062840, 57487976, 71859970, 143719940, 287439880]

約数ペア:

[(1, 287439880), (2, 143719940), (4, 71859970), (5, 57487976), (7, 41062840), (8, 35929985), (10, 28743988), (13, 22110760), (14, 20531420), (20, 14371994), (26, 11055380), (28, 10265710), (29, 9911720), (35, 8212568), (40, 7185997), (49, 5866120), (52, 5527690), (56, 5132855), (58, 4955860), (65, 4422152), (70, 4106284), (91, 3158680), (98, 2933060), (104, 2763845), (116, 2477930), (130, 2211076), (140, 2053142), (145, 1982344), (182, 1579340), (196, 1466530), (203, 1415960), (232, 1238965), (245, 1173224), (260, 1105538), (280, 1026571), (290, 991172), (364, 789670), (377, 762440), (389, 738920), (392, 733265), (406, 707980), (455, 631736), (490, 586612), (520, 552769), (580, 495586), (637, 451240), (728, 394835), (754, 381220), (778, 369460), (812, 353990), (910, 315868), (980, 293306), (1015, 283192), (1160, 247793), (1274, 225620), (1421, 202280), (1508, 190610), (1556, 184730), (1624, 176995), (1820, 157934), (1885, 152488), (1945, 147784), (1960, 146653), (2030, 141596), (2548, 112810), (2639, 108920), (2723, 105560), (2842, 101140), (3016, 95305), (3112, 92365), (3185, 90248), (3640, 78967), (3770, 76244), (3890, 73892), (4060, 70798), (5057, 56840), (5096, 56405), (5278, 54460), (5446, 52780), (5684, 50570), (6370, 45124), (7105, 40456), (7540, 38122), (7780, 36946), (8120, 35399), (10114, 28420), (10556, 27230), (10892, 26390), (11281, 25480), (11368, 25285), (12740, 22562), (13195, 21784), (13615, 21112), (14210, 20228), (15080, 19061), (15560, 18473)]