221735520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3581}}^1$

素因数の和:3645

約数の個数: 144

約数和(自身を含む): 774485712

約数和(自身を除く): 552750192

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 96, 120, 129, 144, 160, 172, 180, 215, 240, 258, 288, 344, 360, 387, 430, 480, 516, 645, 688, 720, 774, 860, 1032, 1290, 1376, 1440, 1548, 1720, 1935, 2064, 2580, 3096, 3440, 3581, 3870, 4128, 5160, 6192, 6880, 7162, 7740, 10320, 10743, 12384, 14324, 15480, 17905, 20640, 21486, 28648, 30960, 32229, 35810, 42972, 53715, 57296, 61920, 64458, 71620, 85944, 107430, 114592, 128916, 143240, 153983, 161145, 171888, 214860, 257832, 286480, 307966, 322290, 343776, 429720, 461949, 515664, 572960, 615932, 644580, 769915, 859440, 923898, 1031328, 1231864, 1289160, 1385847, 1539830, 1718880, 1847796, 2309745, 2463728, 2578320, 2771694, 3079660, 3695592, 4619490, 4927456, 5156640, 5543388, 6159320, 6929235, 7391184, 9238980, 11086776, 12318640, 13858470, 14782368, 18477960, 22173552, 24637280, 27716940, 36955920, 44347104, 55433880, 73911840, 110867760, 221735520]

約数ペア:

[(1, 221735520), (2, 110867760), (3, 73911840), (4, 55433880), (5, 44347104), (6, 36955920), (8, 27716940), (9, 24637280), (10, 22173552), (12, 18477960), (15, 14782368), (16, 13858470), (18, 12318640), (20, 11086776), (24, 9238980), (30, 7391184), (32, 6929235), (36, 6159320), (40, 5543388), (43, 5156640), (45, 4927456), (48, 4619490), (60, 3695592), (72, 3079660), (80, 2771694), (86, 2578320), (90, 2463728), (96, 2309745), (120, 1847796), (129, 1718880), (144, 1539830), (160, 1385847), (172, 1289160), (180, 1231864), (215, 1031328), (240, 923898), (258, 859440), (288, 769915), (344, 644580), (360, 615932), (387, 572960), (430, 515664), (480, 461949), (516, 429720), (645, 343776), (688, 322290), (720, 307966), (774, 286480), (860, 257832), (1032, 214860), (1290, 171888), (1376, 161145), (1440, 153983), (1548, 143240), (1720, 128916), (1935, 114592), (2064, 107430), (2580, 85944), (3096, 71620), (3440, 64458), (3581, 61920), (3870, 57296), (4128, 53715), (5160, 42972), (6192, 35810), (6880, 32229), (7162, 30960), (7740, 28648), (10320, 21486), (10743, 20640), (12384, 17905), (14324, 15480)]