389473040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{2819}}^1$

素因数の和:3000

約数の個数: 80

約数和(自身を含む): 994489920

約数和(自身を除く): 605016880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 157, 176, 220, 314, 440, 628, 785, 880, 1256, 1570, 1727, 2512, 2819, 3140, 3454, 5638, 6280, 6908, 8635, 11276, 12560, 13816, 14095, 17270, 22552, 27632, 28190, 31009, 34540, 45104, 56380, 62018, 69080, 112760, 124036, 138160, 155045, 225520, 248072, 310090, 442583, 496144, 620180, 885166, 1240360, 1770332, 2212915, 2480720, 3540664, 4425830, 4868413, 7081328, 8851660, 9736826, 17703320, 19473652, 24342065, 35406640, 38947304, 48684130, 77894608, 97368260, 194736520, 389473040]

約数ペア:

[(1, 389473040), (2, 194736520), (4, 97368260), (5, 77894608), (8, 48684130), (10, 38947304), (11, 35406640), (16, 24342065), (20, 19473652), (22, 17703320), (40, 9736826), (44, 8851660), (55, 7081328), (80, 4868413), (88, 4425830), (110, 3540664), (157, 2480720), (176, 2212915), (220, 1770332), (314, 1240360), (440, 885166), (628, 620180), (785, 496144), (880, 442583), (1256, 310090), (1570, 248072), (1727, 225520), (2512, 155045), (2819, 138160), (3140, 124036), (3454, 112760), (5638, 69080), (6280, 62018), (6908, 56380), (8635, 45104), (11276, 34540), (12560, 31009), (13816, 28190), (14095, 27632), (17270, 22552)]