388585840

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^2\times {\mathrm{71}}^1$

素因数の和:207

約数の個数: 120

約数和(自身を含む): 963340128

約数和(自身を除く): 574754288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 43, 71, 74, 80, 86, 142, 148, 172, 185, 215, 284, 296, 344, 355, 370, 430, 568, 592, 688, 710, 740, 860, 1136, 1420, 1480, 1591, 1720, 1849, 2627, 2840, 2960, 3053, 3182, 3440, 3698, 5254, 5680, 6106, 6364, 7396, 7955, 9245, 10508, 12212, 12728, 13135, 14792, 15265, 15910, 18490, 21016, 24424, 25456, 26270, 29584, 30530, 31820, 36980, 42032, 48848, 52540, 61060, 63640, 68413, 73960, 105080, 112961, 122120, 127280, 131279, 136826, 147920, 210160, 225922, 244240, 262558, 273652, 342065, 451844, 525116, 547304, 564805, 656395, 684130, 903688, 1050232, 1094608, 1129610, 1312790, 1368260, 1807376, 2100464, 2259220, 2625580, 2736520, 4518440, 4857323, 5251160, 5473040, 9036880, 9714646, 10502320, 19429292, 24286615, 38858584, 48573230, 77717168, 97146460, 194292920, 388585840]

約数ペア:

[(1, 388585840), (2, 194292920), (4, 97146460), (5, 77717168), (8, 48573230), (10, 38858584), (16, 24286615), (20, 19429292), (37, 10502320), (40, 9714646), (43, 9036880), (71, 5473040), (74, 5251160), (80, 4857323), (86, 4518440), (142, 2736520), (148, 2625580), (172, 2259220), (185, 2100464), (215, 1807376), (284, 1368260), (296, 1312790), (344, 1129610), (355, 1094608), (370, 1050232), (430, 903688), (568, 684130), (592, 656395), (688, 564805), (710, 547304), (740, 525116), (860, 451844), (1136, 342065), (1420, 273652), (1480, 262558), (1591, 244240), (1720, 225922), (1849, 210160), (2627, 147920), (2840, 136826), (2960, 131279), (3053, 127280), (3182, 122120), (3440, 112961), (3698, 105080), (5254, 73960), (5680, 68413), (6106, 63640), (6364, 61060), (7396, 52540), (7955, 48848), (9245, 42032), (10508, 36980), (12212, 31820), (12728, 30530), (13135, 29584), (14792, 26270), (15265, 25456), (15910, 24424), (18490, 21016)]