84278680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{641}}^1$

素因数の和:844

約数の個数: 64

約数和(自身を含む): 201074400

約数和(自身を除く): 116795720

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 173, 190, 346, 380, 641, 692, 760, 865, 1282, 1384, 1730, 2564, 3205, 3287, 3460, 5128, 6410, 6574, 6920, 12179, 12820, 13148, 16435, 24358, 25640, 26296, 32870, 48716, 60895, 65740, 97432, 110893, 121790, 131480, 221786, 243580, 443572, 487160, 554465, 887144, 1108930, 2106967, 2217860, 4213934, 4435720, 8427868, 10534835, 16855736, 21069670, 42139340, 84278680]

約数ペア:

[(1, 84278680), (2, 42139340), (4, 21069670), (5, 16855736), (8, 10534835), (10, 8427868), (19, 4435720), (20, 4213934), (38, 2217860), (40, 2106967), (76, 1108930), (95, 887144), (152, 554465), (173, 487160), (190, 443572), (346, 243580), (380, 221786), (641, 131480), (692, 121790), (760, 110893), (865, 97432), (1282, 65740), (1384, 60895), (1730, 48716), (2564, 32870), (3205, 26296), (3287, 25640), (3460, 24358), (5128, 16435), (6410, 13148), (6574, 12820), (6920, 12179)]