165981440

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:188

約数の個数: 144

約数和(自身を含む): 423843840

約数和(自身を除く): 257862400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 47, 62, 64, 80, 89, 94, 124, 128, 155, 160, 178, 188, 235, 248, 256, 310, 320, 356, 376, 445, 470, 496, 620, 640, 712, 752, 890, 940, 992, 1240, 1280, 1424, 1457, 1504, 1780, 1880, 1984, 2480, 2759, 2848, 2914, 3008, 3560, 3760, 3968, 4183, 4960, 5518, 5696, 5828, 6016, 7120, 7285, 7520, 7936, 8366, 9920, 11036, 11392, 11656, 12032, 13795, 14240, 14570, 15040, 16732, 19840, 20915, 22072, 22784, 23312, 27590, 28480, 29140, 30080, 33464, 39680, 41830, 44144, 46624, 55180, 56960, 58280, 60160, 66928, 83660, 88288, 93248, 110360, 113920, 116560, 129673, 133856, 167320, 176576, 186496, 220720, 233120, 259346, 267712, 334640, 353152, 372992, 441440, 466240, 518692, 535424, 648365, 669280, 706304, 882880, 932480, 1037384, 1070848, 1296730, 1338560, 1765760, 1864960, 2074768, 2593460, 2677120, 3531520, 4149536, 5186920, 5354240, 8299072, 10373840, 16598144, 20747680, 33196288, 41495360, 82990720, 165981440]

約数ペア:

[(1, 165981440), (2, 82990720), (4, 41495360), (5, 33196288), (8, 20747680), (10, 16598144), (16, 10373840), (20, 8299072), (31, 5354240), (32, 5186920), (40, 4149536), (47, 3531520), (62, 2677120), (64, 2593460), (80, 2074768), (89, 1864960), (94, 1765760), (124, 1338560), (128, 1296730), (155, 1070848), (160, 1037384), (178, 932480), (188, 882880), (235, 706304), (248, 669280), (256, 648365), (310, 535424), (320, 518692), (356, 466240), (376, 441440), (445, 372992), (470, 353152), (496, 334640), (620, 267712), (640, 259346), (712, 233120), (752, 220720), (890, 186496), (940, 176576), (992, 167320), (1240, 133856), (1280, 129673), (1424, 116560), (1457, 113920), (1504, 110360), (1780, 93248), (1880, 88288), (1984, 83660), (2480, 66928), (2759, 60160), (2848, 58280), (2914, 56960), (3008, 55180), (3560, 46624), (3760, 44144), (3968, 41830), (4183, 39680), (4960, 33464), (5518, 30080), (5696, 29140), (5828, 28480), (6016, 27590), (7120, 23312), (7285, 22784), (7520, 22072), (7936, 20915), (8366, 19840), (9920, 16732), (11036, 15040), (11392, 14570), (11656, 14240), (12032, 13795)]