256279140

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1$

素因数の和:360

約数の個数: 240

約数和(自身を含む): 889065408

約数和(自身を除く): 632786268

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 43, 45, 52, 54, 60, 65, 78, 81, 86, 90, 108, 117, 129, 130, 135, 156, 162, 172, 180, 195, 215, 234, 258, 260, 270, 283, 324, 351, 387, 390, 405, 430, 468, 516, 540, 559, 566, 585, 645, 702, 774, 780, 810, 849, 860, 1053, 1118, 1132, 1161, 1170, 1290, 1404, 1415, 1548, 1620, 1677, 1698, 1755, 1935, 2106, 2236, 2322, 2340, 2547, 2580, 2795, 2830, 3354, 3396, 3483, 3510, 3679, 3870, 4212, 4245, 4644, 5031, 5094, 5265, 5590, 5660, 5805, 6708, 6966, 7020, 7358, 7641, 7740, 8385, 8490, 10062, 10188, 10530, 11037, 11180, 11610, 12169, 12735, 13932, 14716, 15093, 15282, 16770, 16980, 17415, 18395, 20124, 21060, 22074, 22923, 23220, 24338, 25155, 25470, 30186, 30564, 33111, 33540, 34830, 36507, 36790, 38205, 44148, 45279, 45846, 48676, 50310, 50940, 55185, 60372, 60845, 66222, 69660, 73014, 73580, 75465, 76410, 90558, 91692, 99333, 100620, 109521, 110370, 114615, 121690, 132444, 146028, 150930, 152820, 158197, 165555, 181116, 182535, 198666, 219042, 220740, 226395, 229230, 243380, 297999, 301860, 316394, 328563, 331110, 365070, 397332, 438084, 452790, 458460, 474591, 496665, 547605, 595998, 632788, 657126, 662220, 730140, 790985, 905580, 949182, 985689, 993330, 1095210, 1191996, 1314252, 1423773, 1489995, 1581970, 1642815, 1898364, 1971378, 1986660, 2190420, 2372955, 2847546, 2979990, 3163940, 3285630, 3942756, 4271319, 4745910, 4928445, 5695092, 5959980, 6571260, 7118865, 8542638, 9491820, 9856890, 12813957, 14237730, 17085276, 19713780, 21356595, 25627914, 28475460, 42713190, 51255828, 64069785, 85426380, 128139570, 256279140]

約数ペア:

[(1, 256279140), (2, 128139570), (3, 85426380), (4, 64069785), (5, 51255828), (6, 42713190), (9, 28475460), (10, 25627914), (12, 21356595), (13, 19713780), (15, 17085276), (18, 14237730), (20, 12813957), (26, 9856890), (27, 9491820), (30, 8542638), (36, 7118865), (39, 6571260), (43, 5959980), (45, 5695092), (52, 4928445), (54, 4745910), (60, 4271319), (65, 3942756), (78, 3285630), (81, 3163940), (86, 2979990), (90, 2847546), (108, 2372955), (117, 2190420), (129, 1986660), (130, 1971378), (135, 1898364), (156, 1642815), (162, 1581970), (172, 1489995), (180, 1423773), (195, 1314252), (215, 1191996), (234, 1095210), (258, 993330), (260, 985689), (270, 949182), (283, 905580), (324, 790985), (351, 730140), (387, 662220), (390, 657126), (405, 632788), (430, 595998), (468, 547605), (516, 496665), (540, 474591), (559, 458460), (566, 452790), (585, 438084), (645, 397332), (702, 365070), (774, 331110), (780, 328563), (810, 316394), (849, 301860), (860, 297999), (1053, 243380), (1118, 229230), (1132, 226395), (1161, 220740), (1170, 219042), (1290, 198666), (1404, 182535), (1415, 181116), (1548, 165555), (1620, 158197), (1677, 152820), (1698, 150930), (1755, 146028), (1935, 132444), (2106, 121690), (2236, 114615), (2322, 110370), (2340, 109521), (2547, 100620), (2580, 99333), (2795, 91692), (2830, 90558), (3354, 76410), (3396, 75465), (3483, 73580), (3510, 73014), (3679, 69660), (3870, 66222), (4212, 60845), (4245, 60372), (4644, 55185), (5031, 50940), (5094, 50310), (5265, 48676), (5590, 45846), (5660, 45279), (5805, 44148), (6708, 38205), (6966, 36790), (7020, 36507), (7358, 34830), (7641, 33540), (7740, 33111), (8385, 30564), (8490, 30186), (10062, 25470), (10188, 25155), (10530, 24338), (11037, 23220), (11180, 22923), (11610, 22074), (12169, 21060), (12735, 20124), (13932, 18395), (14716, 17415), (15093, 16980), (15282, 16770)]