123147520

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 317882880

約数和(自身を除く): 194735360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 47, 64, 80, 89, 92, 94, 115, 128, 160, 178, 184, 188, 230, 235, 256, 320, 356, 368, 376, 445, 460, 470, 640, 712, 736, 752, 890, 920, 940, 1081, 1280, 1424, 1472, 1504, 1780, 1840, 1880, 2047, 2162, 2848, 2944, 3008, 3560, 3680, 3760, 4094, 4183, 4324, 5405, 5696, 5888, 6016, 7120, 7360, 7520, 8188, 8366, 8648, 10235, 10810, 11392, 12032, 14240, 14720, 15040, 16376, 16732, 17296, 20470, 20915, 21620, 22784, 28480, 29440, 30080, 32752, 33464, 34592, 40940, 41830, 43240, 56960, 60160, 65504, 66928, 69184, 81880, 83660, 86480, 96209, 113920, 131008, 133856, 138368, 163760, 167320, 172960, 192418, 262016, 267712, 276736, 327520, 334640, 345920, 384836, 481045, 524032, 535424, 655040, 669280, 691840, 769672, 962090, 1070848, 1310080, 1338560, 1383680, 1539344, 1924180, 2620160, 2677120, 3078688, 3848360, 5354240, 6157376, 7696720, 12314752, 15393440, 24629504, 30786880, 61573760, 123147520]

約数ペア:

[(1, 123147520), (2, 61573760), (4, 30786880), (5, 24629504), (8, 15393440), (10, 12314752), (16, 7696720), (20, 6157376), (23, 5354240), (32, 3848360), (40, 3078688), (46, 2677120), (47, 2620160), (64, 1924180), (80, 1539344), (89, 1383680), (92, 1338560), (94, 1310080), (115, 1070848), (128, 962090), (160, 769672), (178, 691840), (184, 669280), (188, 655040), (230, 535424), (235, 524032), (256, 481045), (320, 384836), (356, 345920), (368, 334640), (376, 327520), (445, 276736), (460, 267712), (470, 262016), (640, 192418), (712, 172960), (736, 167320), (752, 163760), (890, 138368), (920, 133856), (940, 131008), (1081, 113920), (1280, 96209), (1424, 86480), (1472, 83660), (1504, 81880), (1780, 69184), (1840, 66928), (1880, 65504), (2047, 60160), (2162, 56960), (2848, 43240), (2944, 41830), (3008, 40940), (3560, 34592), (3680, 33464), (3760, 32752), (4094, 30080), (4183, 29440), (4324, 28480), (5405, 22784), (5696, 21620), (5888, 20915), (6016, 20470), (7120, 17296), (7360, 16732), (7520, 16376), (8188, 15040), (8366, 14720), (8648, 14240), (10235, 12032), (10810, 11392)]