53540920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{21943}}^1$

素因数の和:22015

約数の個数: 32

約数和(自身を含む): 122447520

約数和(自身を除く): 68906600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 21943, 43886, 87772, 109715, 175544, 219430, 438860, 877720, 1338523, 2677046, 5354092, 6692615, 10708184, 13385230, 26770460, 53540920]

約数ペア:

[(1, 53540920), (2, 26770460), (4, 13385230), (5, 10708184), (8, 6692615), (10, 5354092), (20, 2677046), (40, 1338523), (61, 877720), (122, 438860), (244, 219430), (305, 175544), (488, 109715), (610, 87772), (1220, 43886), (2440, 21943)]