205669120

素因数分解:

$2^8\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3919}}^1$

素因数の和:3981

約数の個数: 72

約数和(自身を含む): 504786240

約数和(自身を除く): 299117120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 640, 656, 820, 1280, 1312, 1640, 2624, 3280, 3919, 5248, 6560, 7838, 10496, 13120, 15676, 19595, 26240, 31352, 39190, 52480, 62704, 78380, 125408, 156760, 160679, 250816, 313520, 321358, 501632, 627040, 642716, 803395, 1003264, 1254080, 1285432, 1606790, 2508160, 2570864, 3213580, 5016320, 5141728, 6427160, 10283456, 12854320, 20566912, 25708640, 41133824, 51417280, 102834560, 205669120]

約数ペア:

[(1, 205669120), (2, 102834560), (4, 51417280), (5, 41133824), (8, 25708640), (10, 20566912), (16, 12854320), (20, 10283456), (32, 6427160), (40, 5141728), (41, 5016320), (64, 3213580), (80, 2570864), (82, 2508160), (128, 1606790), (160, 1285432), (164, 1254080), (205, 1003264), (256, 803395), (320, 642716), (328, 627040), (410, 501632), (640, 321358), (656, 313520), (820, 250816), (1280, 160679), (1312, 156760), (1640, 125408), (2624, 78380), (3280, 62704), (3919, 52480), (5248, 39190), (6560, 31352), (7838, 26240), (10496, 19595), (13120, 15676)]