20139959200

素因数分解:

$2^5\times 5^2\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{4259}}^1$

素因数の和:4559

約数の個数: 144

約数和(自身を含む): 51516077760

約数和(自身を除く): 31376118560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 80, 92, 100, 115, 160, 184, 200, 230, 257, 368, 400, 460, 514, 575, 736, 800, 920, 1028, 1150, 1285, 1840, 2056, 2300, 2570, 3680, 4112, 4259, 4600, 5140, 5911, 6425, 8224, 8518, 9200, 10280, 11822, 12850, 17036, 18400, 20560, 21295, 23644, 25700, 29555, 34072, 41120, 42590, 47288, 51400, 59110, 68144, 85180, 94576, 97957, 102800, 106475, 118220, 136288, 147775, 170360, 189152, 195914, 205600, 212950, 236440, 295550, 340720, 391828, 425900, 472880, 489785, 591100, 681440, 783656, 851800, 945760, 979570, 1094563, 1182200, 1567312, 1703600, 1959140, 2189126, 2364400, 2448925, 3134624, 3407200, 3918280, 4378252, 4728800, 4897850, 5472815, 7836560, 8756504, 9795700, 10945630, 15673120, 17513008, 19591400, 21891260, 25174949, 27364075, 35026016, 39182800, 43782520, 50349898, 54728150, 78365600, 87565040, 100699796, 109456300, 125874745, 175130080, 201399592, 218912600, 251749490, 402799184, 437825200, 503498980, 629373725, 805598368, 875650400, 1006997960, 1258747450, 2013995920, 2517494900, 4027991840, 5034989800, 10069979600, 20139959200]

約数ペア:

[(1, 20139959200), (2, 10069979600), (4, 5034989800), (5, 4027991840), (8, 2517494900), (10, 2013995920), (16, 1258747450), (20, 1006997960), (23, 875650400), (25, 805598368), (32, 629373725), (40, 503498980), (46, 437825200), (50, 402799184), (80, 251749490), (92, 218912600), (100, 201399592), (115, 175130080), (160, 125874745), (184, 109456300), (200, 100699796), (230, 87565040), (257, 78365600), (368, 54728150), (400, 50349898), (460, 43782520), (514, 39182800), (575, 35026016), (736, 27364075), (800, 25174949), (920, 21891260), (1028, 19591400), (1150, 17513008), (1285, 15673120), (1840, 10945630), (2056, 9795700), (2300, 8756504), (2570, 7836560), (3680, 5472815), (4112, 4897850), (4259, 4728800), (4600, 4378252), (5140, 3918280), (5911, 3407200), (6425, 3134624), (8224, 2448925), (8518, 2364400), (9200, 2189126), (10280, 1959140), (11822, 1703600), (12850, 1567312), (17036, 1182200), (18400, 1094563), (20560, 979570), (21295, 945760), (23644, 851800), (25700, 783656), (29555, 681440), (34072, 591100), (41120, 489785), (42590, 472880), (47288, 425900), (51400, 391828), (59110, 340720), (68144, 295550), (85180, 236440), (94576, 212950), (97957, 205600), (102800, 195914), (106475, 189152), (118220, 170360), (136288, 147775)]