204020320

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{491}}^1$

素因数の和:573

約数の個数: 144

約数和(自身を含む): 572434128

約数和(自身を除く): 368413808

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 53, 56, 70, 80, 98, 106, 112, 140, 160, 196, 212, 224, 245, 265, 280, 371, 392, 424, 490, 491, 530, 560, 742, 784, 848, 980, 982, 1060, 1120, 1484, 1568, 1696, 1855, 1960, 1964, 2120, 2455, 2597, 2968, 3437, 3710, 3920, 3928, 4240, 4910, 5194, 5936, 6874, 7420, 7840, 7856, 8480, 9820, 10388, 11872, 12985, 13748, 14840, 15712, 17185, 19640, 20776, 24059, 25970, 26023, 27496, 29680, 34370, 39280, 41552, 48118, 51940, 52046, 54992, 59360, 68740, 78560, 83104, 96236, 103880, 104092, 109984, 120295, 130115, 137480, 182161, 192472, 207760, 208184, 240590, 260230, 274960, 364322, 384944, 415520, 416368, 481180, 520460, 549920, 728644, 769888, 832736, 910805, 962360, 1040920, 1275127, 1457288, 1821610, 1924720, 2081840, 2550254, 2914576, 3643220, 3849440, 4163680, 5100508, 5829152, 6375635, 7286440, 10201016, 12751270, 14572880, 20402032, 25502540, 29145760, 40804064, 51005080, 102010160, 204020320]

約数ペア:

[(1, 204020320), (2, 102010160), (4, 51005080), (5, 40804064), (7, 29145760), (8, 25502540), (10, 20402032), (14, 14572880), (16, 12751270), (20, 10201016), (28, 7286440), (32, 6375635), (35, 5829152), (40, 5100508), (49, 4163680), (53, 3849440), (56, 3643220), (70, 2914576), (80, 2550254), (98, 2081840), (106, 1924720), (112, 1821610), (140, 1457288), (160, 1275127), (196, 1040920), (212, 962360), (224, 910805), (245, 832736), (265, 769888), (280, 728644), (371, 549920), (392, 520460), (424, 481180), (490, 416368), (491, 415520), (530, 384944), (560, 364322), (742, 274960), (784, 260230), (848, 240590), (980, 208184), (982, 207760), (1060, 192472), (1120, 182161), (1484, 137480), (1568, 130115), (1696, 120295), (1855, 109984), (1960, 104092), (1964, 103880), (2120, 96236), (2455, 83104), (2597, 78560), (2968, 68740), (3437, 59360), (3710, 54992), (3920, 52046), (3928, 51940), (4240, 48118), (4910, 41552), (5194, 39280), (5936, 34370), (6874, 29680), (7420, 27496), (7840, 26023), (7856, 25970), (8480, 24059), (9820, 20776), (10388, 19640), (11872, 17185), (12985, 15712), (13748, 14840)]