641355760

素因数分解:

$2^4\times 5^1\times {\mathrm{1373}}^1\times {\mathrm{5839}}^1$

素因数の和:7225

約数の個数: 40

約数和(自身を含む): 1492493760

約数和(自身を除く): 851138000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1373, 2746, 5492, 5839, 6865, 10984, 11678, 13730, 21968, 23356, 27460, 29195, 46712, 54920, 58390, 93424, 109840, 116780, 233560, 467120, 8016947, 16033894, 32067788, 40084735, 64135576, 80169470, 128271152, 160338940, 320677880, 641355760]

約数ペア:

[(1, 641355760), (2, 320677880), (4, 160338940), (5, 128271152), (8, 80169470), (10, 64135576), (16, 40084735), (20, 32067788), (40, 16033894), (80, 8016947), (1373, 467120), (2746, 233560), (5492, 116780), (5839, 109840), (6865, 93424), (10984, 58390), (11678, 54920), (13730, 46712), (21968, 29195), (23356, 27460)]