121780480

素因数分解:

$2^8\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1069}}^1$

素因数の和:1179

約数の個数: 72

約数和(自身を含む): 295255800

約数和(自身を除く): 173475320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 256, 320, 356, 445, 640, 712, 890, 1069, 1280, 1424, 1780, 2138, 2848, 3560, 4276, 5345, 5696, 7120, 8552, 10690, 11392, 14240, 17104, 21380, 22784, 28480, 34208, 42760, 56960, 68416, 85520, 95141, 113920, 136832, 171040, 190282, 273664, 342080, 380564, 475705, 684160, 761128, 951410, 1368320, 1522256, 1902820, 3044512, 3805640, 6089024, 7611280, 12178048, 15222560, 24356096, 30445120, 60890240, 121780480]

約数ペア:

[(1, 121780480), (2, 60890240), (4, 30445120), (5, 24356096), (8, 15222560), (10, 12178048), (16, 7611280), (20, 6089024), (32, 3805640), (40, 3044512), (64, 1902820), (80, 1522256), (89, 1368320), (128, 951410), (160, 761128), (178, 684160), (256, 475705), (320, 380564), (356, 342080), (445, 273664), (640, 190282), (712, 171040), (890, 136832), (1069, 113920), (1280, 95141), (1424, 85520), (1780, 68416), (2138, 56960), (2848, 42760), (3560, 34208), (4276, 28480), (5345, 22784), (5696, 21380), (7120, 17104), (8552, 14240), (10690, 11392)]