252421840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:561

約数の個数: 160

約数和(自身を含む): 697098240

約数和(自身を除く): 444676400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 31, 38, 40, 44, 55, 62, 76, 80, 88, 95, 110, 124, 152, 155, 176, 190, 209, 220, 248, 304, 310, 341, 380, 418, 440, 487, 496, 589, 620, 682, 760, 836, 880, 974, 1045, 1178, 1240, 1364, 1520, 1672, 1705, 1948, 2090, 2356, 2435, 2480, 2728, 2945, 3344, 3410, 3896, 4180, 4712, 4870, 5357, 5456, 5890, 6479, 6820, 7792, 8360, 9253, 9424, 9740, 10714, 11780, 12958, 13640, 15097, 16720, 18506, 19480, 21428, 23560, 25916, 26785, 27280, 30194, 32395, 37012, 38960, 42856, 46265, 47120, 51832, 53570, 60388, 64790, 74024, 75485, 85712, 92530, 101783, 103664, 107140, 120776, 129580, 148048, 150970, 166067, 185060, 203566, 214280, 241552, 259160, 286843, 301940, 332134, 370120, 407132, 428560, 508915, 518320, 573686, 603880, 664268, 740240, 814264, 830335, 1017830, 1147372, 1207760, 1328536, 1434215, 1628528, 1660670, 2035660, 2294744, 2657072, 2868430, 3155273, 3321340, 4071320, 4589488, 5736860, 6310546, 6642680, 8142640, 11473720, 12621092, 13285360, 15776365, 22947440, 25242184, 31552730, 50484368, 63105460, 126210920, 252421840]

約数ペア:

[(1, 252421840), (2, 126210920), (4, 63105460), (5, 50484368), (8, 31552730), (10, 25242184), (11, 22947440), (16, 15776365), (19, 13285360), (20, 12621092), (22, 11473720), (31, 8142640), (38, 6642680), (40, 6310546), (44, 5736860), (55, 4589488), (62, 4071320), (76, 3321340), (80, 3155273), (88, 2868430), (95, 2657072), (110, 2294744), (124, 2035660), (152, 1660670), (155, 1628528), (176, 1434215), (190, 1328536), (209, 1207760), (220, 1147372), (248, 1017830), (304, 830335), (310, 814264), (341, 740240), (380, 664268), (418, 603880), (440, 573686), (487, 518320), (496, 508915), (589, 428560), (620, 407132), (682, 370120), (760, 332134), (836, 301940), (880, 286843), (974, 259160), (1045, 241552), (1178, 214280), (1240, 203566), (1364, 185060), (1520, 166067), (1672, 150970), (1705, 148048), (1948, 129580), (2090, 120776), (2356, 107140), (2435, 103664), (2480, 101783), (2728, 92530), (2945, 85712), (3344, 75485), (3410, 74024), (3896, 64790), (4180, 60388), (4712, 53570), (4870, 51832), (5357, 47120), (5456, 46265), (5890, 42856), (6479, 38960), (6820, 37012), (7792, 32395), (8360, 30194), (9253, 27280), (9424, 26785), (9740, 25916), (10714, 23560), (11780, 21428), (12958, 19480), (13640, 18506), (15097, 16720)]