212440480

素因数分解:

$2^5\times 5^1\times 7^5\times {\mathrm{79}}^1$

素因数の和:129

約数の個数: 144

約数和(自身を含む): 592945920

約数和(自身を除く): 380505440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 79, 80, 98, 112, 140, 158, 160, 196, 224, 245, 280, 316, 343, 392, 395, 490, 553, 560, 632, 686, 784, 790, 980, 1106, 1120, 1264, 1372, 1568, 1580, 1715, 1960, 2212, 2401, 2528, 2744, 2765, 3160, 3430, 3871, 3920, 4424, 4802, 5488, 5530, 6320, 6860, 7742, 7840, 8848, 9604, 10976, 11060, 12005, 12640, 13720, 15484, 16807, 17696, 19208, 19355, 22120, 24010, 27097, 27440, 30968, 33614, 38416, 38710, 44240, 48020, 54194, 54880, 61936, 67228, 76832, 77420, 84035, 88480, 96040, 108388, 123872, 134456, 135485, 154840, 168070, 189679, 192080, 216776, 268912, 270970, 309680, 336140, 379358, 384160, 433552, 537824, 541940, 619360, 672280, 758716, 867104, 948395, 1083880, 1327753, 1344560, 1517432, 1896790, 2167760, 2655506, 2689120, 3034864, 3793580, 4335520, 5311012, 6069728, 6638765, 7587160, 10622024, 13277530, 15174320, 21244048, 26555060, 30348640, 42488096, 53110120, 106220240, 212440480]

約数ペア:

[(1, 212440480), (2, 106220240), (4, 53110120), (5, 42488096), (7, 30348640), (8, 26555060), (10, 21244048), (14, 15174320), (16, 13277530), (20, 10622024), (28, 7587160), (32, 6638765), (35, 6069728), (40, 5311012), (49, 4335520), (56, 3793580), (70, 3034864), (79, 2689120), (80, 2655506), (98, 2167760), (112, 1896790), (140, 1517432), (158, 1344560), (160, 1327753), (196, 1083880), (224, 948395), (245, 867104), (280, 758716), (316, 672280), (343, 619360), (392, 541940), (395, 537824), (490, 433552), (553, 384160), (560, 379358), (632, 336140), (686, 309680), (784, 270970), (790, 268912), (980, 216776), (1106, 192080), (1120, 189679), (1264, 168070), (1372, 154840), (1568, 135485), (1580, 134456), (1715, 123872), (1960, 108388), (2212, 96040), (2401, 88480), (2528, 84035), (2744, 77420), (2765, 76832), (3160, 67228), (3430, 61936), (3871, 54880), (3920, 54194), (4424, 48020), (4802, 44240), (5488, 38710), (5530, 38416), (6320, 33614), (6860, 30968), (7742, 27440), (7840, 27097), (8848, 24010), (9604, 22120), (10976, 19355), (11060, 19208), (12005, 17696), (12640, 16807), (13720, 15484)]