257943240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{877}}^1$

素因数の和:956

約数の個数: 192

約数和(自身を含む): 903988800

約数和(自身を除く): 646045560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 43, 45, 57, 60, 72, 76, 86, 90, 95, 114, 120, 129, 152, 171, 172, 180, 190, 215, 228, 258, 285, 342, 344, 360, 380, 387, 430, 456, 516, 570, 645, 684, 760, 774, 817, 855, 860, 877, 1032, 1140, 1290, 1368, 1548, 1634, 1710, 1720, 1754, 1935, 2280, 2451, 2580, 2631, 3096, 3268, 3420, 3508, 3870, 4085, 4385, 4902, 5160, 5262, 6536, 6840, 7016, 7353, 7740, 7893, 8170, 8770, 9804, 10524, 12255, 13155, 14706, 15480, 15786, 16340, 16663, 17540, 19608, 21048, 24510, 26310, 29412, 31572, 32680, 33326, 35080, 36765, 37711, 39465, 49020, 49989, 52620, 58824, 63144, 66652, 73530, 75422, 78930, 83315, 98040, 99978, 105240, 113133, 133304, 147060, 149967, 150844, 157860, 166630, 188555, 199956, 226266, 249945, 294120, 299934, 301688, 315720, 333260, 339399, 377110, 399912, 452532, 499890, 565665, 599868, 666520, 678798, 716509, 749835, 754220, 905064, 999780, 1131330, 1199736, 1357596, 1433018, 1499670, 1508440, 1696995, 1999560, 2149527, 2262660, 2715192, 2866036, 2999340, 3393990, 3582545, 4299054, 4525320, 5732072, 5998680, 6448581, 6787980, 7165090, 8598108, 10747635, 12897162, 13575960, 14330180, 17196216, 21495270, 25794324, 28660360, 32242905, 42990540, 51588648, 64485810, 85981080, 128971620, 257943240]

約数ペア:

[(1, 257943240), (2, 128971620), (3, 85981080), (4, 64485810), (5, 51588648), (6, 42990540), (8, 32242905), (9, 28660360), (10, 25794324), (12, 21495270), (15, 17196216), (18, 14330180), (19, 13575960), (20, 12897162), (24, 10747635), (30, 8598108), (36, 7165090), (38, 6787980), (40, 6448581), (43, 5998680), (45, 5732072), (57, 4525320), (60, 4299054), (72, 3582545), (76, 3393990), (86, 2999340), (90, 2866036), (95, 2715192), (114, 2262660), (120, 2149527), (129, 1999560), (152, 1696995), (171, 1508440), (172, 1499670), (180, 1433018), (190, 1357596), (215, 1199736), (228, 1131330), (258, 999780), (285, 905064), (342, 754220), (344, 749835), (360, 716509), (380, 678798), (387, 666520), (430, 599868), (456, 565665), (516, 499890), (570, 452532), (645, 399912), (684, 377110), (760, 339399), (774, 333260), (817, 315720), (855, 301688), (860, 299934), (877, 294120), (1032, 249945), (1140, 226266), (1290, 199956), (1368, 188555), (1548, 166630), (1634, 157860), (1710, 150844), (1720, 149967), (1754, 147060), (1935, 133304), (2280, 113133), (2451, 105240), (2580, 99978), (2631, 98040), (3096, 83315), (3268, 78930), (3420, 75422), (3508, 73530), (3870, 66652), (4085, 63144), (4385, 58824), (4902, 52620), (5160, 49989), (5262, 49020), (6536, 39465), (6840, 37711), (7016, 36765), (7353, 35080), (7740, 33326), (7893, 32680), (8170, 31572), (8770, 29412), (9804, 26310), (10524, 24510), (12255, 21048), (13155, 19608), (14706, 17540), (15480, 16663), (15786, 16340)]