25428174080

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1\times {\mathrm{1259}}^1$

素因数の和:1820

約数の個数: 144

約数和(自身を含む): 63046771200

約数和(自身を除く): 37618597120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 509, 620, 640, 992, 1018, 1240, 1259, 1280, 1984, 2036, 2480, 2518, 2545, 3968, 4072, 4960, 5036, 5090, 6295, 7936, 8144, 9920, 10072, 10180, 12590, 15779, 16288, 19840, 20144, 20360, 25180, 31558, 32576, 39029, 39680, 40288, 40720, 50360, 63116, 65152, 78058, 78895, 80576, 81440, 100720, 126232, 130304, 156116, 157790, 161152, 162880, 195145, 201440, 252464, 312232, 315580, 322304, 325760, 390290, 402880, 504928, 624464, 631160, 640831, 651520, 780580, 805760, 1009856, 1248928, 1262320, 1281662, 1561160, 1611520, 2019712, 2497856, 2524640, 2563324, 3122320, 3204155, 4039424, 4995712, 5049280, 5126648, 6244640, 6408310, 9991424, 10098560, 10253296, 12489280, 12816620, 19865761, 20197120, 20506592, 24978560, 25633240, 39731522, 41013184, 49957120, 51266480, 79463044, 82026368, 99328805, 102532960, 158926088, 164052736, 198657610, 205065920, 317852176, 397315220, 410131840, 635704352, 794630440, 820263680, 1271408704, 1589260880, 2542817408, 3178521760, 5085634816, 6357043520, 12714087040, 25428174080]

約数ペア:

[(1, 25428174080), (2, 12714087040), (4, 6357043520), (5, 5085634816), (8, 3178521760), (10, 2542817408), (16, 1589260880), (20, 1271408704), (31, 820263680), (32, 794630440), (40, 635704352), (62, 410131840), (64, 397315220), (80, 317852176), (124, 205065920), (128, 198657610), (155, 164052736), (160, 158926088), (248, 102532960), (256, 99328805), (310, 82026368), (320, 79463044), (496, 51266480), (509, 49957120), (620, 41013184), (640, 39731522), (992, 25633240), (1018, 24978560), (1240, 20506592), (1259, 20197120), (1280, 19865761), (1984, 12816620), (2036, 12489280), (2480, 10253296), (2518, 10098560), (2545, 9991424), (3968, 6408310), (4072, 6244640), (4960, 5126648), (5036, 5049280), (5090, 4995712), (6295, 4039424), (7936, 3204155), (8144, 3122320), (9920, 2563324), (10072, 2524640), (10180, 2497856), (12590, 2019712), (15779, 1611520), (16288, 1561160), (19840, 1281662), (20144, 1262320), (20360, 1248928), (25180, 1009856), (31558, 805760), (32576, 780580), (39029, 651520), (39680, 640831), (40288, 631160), (40720, 624464), (50360, 504928), (63116, 402880), (65152, 390290), (78058, 325760), (78895, 322304), (80576, 315580), (81440, 312232), (100720, 252464), (126232, 201440), (130304, 195145), (156116, 162880), (157790, 161152)]