82990720

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:186

約数の個数: 128

約数和(自身を含む): 211507200

約数和(自身を除く): 128516480

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, 310, 320, 356, 376, 445, 470, 496, 620, 640, 712, 752, 890, 940, 992, 1240, 1424, 1457, 1504, 1780, 1880, 1984, 2480, 2759, 2848, 2914, 3008, 3560, 3760, 3968, 4183, 4960, 5518, 5696, 5828, 6016, 7120, 7285, 7520, 8366, 9920, 11036, 11392, 11656, 13795, 14240, 14570, 15040, 16732, 19840, 20915, 22072, 23312, 27590, 28480, 29140, 30080, 33464, 41830, 44144, 46624, 55180, 56960, 58280, 66928, 83660, 88288, 93248, 110360, 116560, 129673, 133856, 167320, 176576, 186496, 220720, 233120, 259346, 267712, 334640, 353152, 441440, 466240, 518692, 535424, 648365, 669280, 882880, 932480, 1037384, 1296730, 1338560, 1765760, 2074768, 2593460, 2677120, 4149536, 5186920, 8299072, 10373840, 16598144, 20747680, 41495360, 82990720]

約数ペア:

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