1215204720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{499}}^1$

素因数の和:727

約数の個数: 160

約数和(自身を含む): 3853920000

約数和(自身を除く): 2638715280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 73, 80, 120, 139, 146, 219, 240, 278, 292, 365, 417, 438, 499, 556, 584, 695, 730, 834, 876, 998, 1095, 1112, 1168, 1390, 1460, 1497, 1668, 1752, 1996, 2085, 2190, 2224, 2495, 2780, 2920, 2994, 3336, 3504, 3992, 4170, 4380, 4990, 5560, 5840, 5988, 6672, 7485, 7984, 8340, 8760, 9980, 10147, 11120, 11976, 14970, 16680, 17520, 19960, 20294, 23952, 29940, 30441, 33360, 36427, 39920, 40588, 50735, 59880, 60882, 69361, 72854, 81176, 101470, 109281, 119760, 121764, 138722, 145708, 152205, 162352, 182135, 202940, 208083, 218562, 243528, 277444, 291416, 304410, 346805, 364270, 405880, 416166, 437124, 487056, 546405, 554888, 582832, 608820, 693610, 728540, 811760, 832332, 874248, 1040415, 1092810, 1109776, 1217640, 1387220, 1457080, 1664664, 1748496, 2080830, 2185620, 2435280, 2774440, 2914160, 3329328, 4161660, 4371240, 5063353, 5548880, 8323320, 8742480, 10126706, 15190059, 16646640, 20253412, 25316765, 30380118, 40506824, 50633530, 60760236, 75950295, 81013648, 101267060, 121520472, 151900590, 202534120, 243040944, 303801180, 405068240, 607602360, 1215204720]

約数ペア:

[(1, 1215204720), (2, 607602360), (3, 405068240), (4, 303801180), (5, 243040944), (6, 202534120), (8, 151900590), (10, 121520472), (12, 101267060), (15, 81013648), (16, 75950295), (20, 60760236), (24, 50633530), (30, 40506824), (40, 30380118), (48, 25316765), (60, 20253412), (73, 16646640), (80, 15190059), (120, 10126706), (139, 8742480), (146, 8323320), (219, 5548880), (240, 5063353), (278, 4371240), (292, 4161660), (365, 3329328), (417, 2914160), (438, 2774440), (499, 2435280), (556, 2185620), (584, 2080830), (695, 1748496), (730, 1664664), (834, 1457080), (876, 1387220), (998, 1217640), (1095, 1109776), (1112, 1092810), (1168, 1040415), (1390, 874248), (1460, 832332), (1497, 811760), (1668, 728540), (1752, 693610), (1996, 608820), (2085, 582832), (2190, 554888), (2224, 546405), (2495, 487056), (2780, 437124), (2920, 416166), (2994, 405880), (3336, 364270), (3504, 346805), (3992, 304410), (4170, 291416), (4380, 277444), (4990, 243528), (5560, 218562), (5840, 208083), (5988, 202940), (6672, 182135), (7485, 162352), (7984, 152205), (8340, 145708), (8760, 138722), (9980, 121764), (10147, 119760), (11120, 109281), (11976, 101470), (14970, 81176), (16680, 72854), (17520, 69361), (19960, 60882), (20294, 59880), (23952, 50735), (29940, 40588), (30441, 39920), (33360, 36427)]