256936240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{127}}^1$

素因数の和:192

約数の個数: 160

約数和(自身を含む): 697098240

約数和(自身を除く): 440162000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 121, 127, 152, 176, 190, 209, 220, 242, 254, 304, 380, 418, 440, 484, 508, 605, 635, 760, 836, 880, 968, 1016, 1045, 1210, 1270, 1331, 1397, 1520, 1672, 1936, 2032, 2090, 2299, 2413, 2420, 2540, 2662, 2794, 3344, 4180, 4598, 4826, 4840, 5080, 5324, 5588, 6655, 6985, 8360, 9196, 9652, 9680, 10160, 10648, 11176, 11495, 12065, 13310, 13970, 15367, 16720, 18392, 19304, 21296, 22352, 22990, 24130, 25289, 26543, 26620, 27940, 30734, 36784, 38608, 45980, 48260, 50578, 53086, 53240, 55880, 61468, 76835, 91960, 96520, 101156, 106172, 106480, 111760, 122936, 126445, 132715, 153670, 169037, 183920, 193040, 202312, 212344, 245872, 252890, 265430, 291973, 307340, 338074, 404624, 424688, 505780, 530860, 583946, 614680, 676148, 845185, 1011560, 1061720, 1167892, 1229360, 1352296, 1459865, 1690370, 2023120, 2123440, 2335784, 2704592, 2919730, 3211703, 3380740, 4671568, 5839460, 6423406, 6761480, 11678920, 12846812, 13522960, 16058515, 23357840, 25693624, 32117030, 51387248, 64234060, 128468120, 256936240]

約数ペア:

[(1, 256936240), (2, 128468120), (4, 64234060), (5, 51387248), (8, 32117030), (10, 25693624), (11, 23357840), (16, 16058515), (19, 13522960), (20, 12846812), (22, 11678920), (38, 6761480), (40, 6423406), (44, 5839460), (55, 4671568), (76, 3380740), (80, 3211703), (88, 2919730), (95, 2704592), (110, 2335784), (121, 2123440), (127, 2023120), (152, 1690370), (176, 1459865), (190, 1352296), (209, 1229360), (220, 1167892), (242, 1061720), (254, 1011560), (304, 845185), (380, 676148), (418, 614680), (440, 583946), (484, 530860), (508, 505780), (605, 424688), (635, 404624), (760, 338074), (836, 307340), (880, 291973), (968, 265430), (1016, 252890), (1045, 245872), (1210, 212344), (1270, 202312), (1331, 193040), (1397, 183920), (1520, 169037), (1672, 153670), (1936, 132715), (2032, 126445), (2090, 122936), (2299, 111760), (2413, 106480), (2420, 106172), (2540, 101156), (2662, 96520), (2794, 91960), (3344, 76835), (4180, 61468), (4598, 55880), (4826, 53240), (4840, 53086), (5080, 50578), (5324, 48260), (5588, 45980), (6655, 38608), (6985, 36784), (8360, 30734), (9196, 27940), (9652, 26620), (9680, 26543), (10160, 25289), (10648, 24130), (11176, 22990), (11495, 22352), (12065, 21296), (13310, 19304), (13970, 18392), (15367, 16720)]