98021720

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{3823}}^1$

素因数の和:4475

約数の個数: 32

約数和(自身を含む): 220950720

約数和(自身を除く): 122929000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2564, 3205, 3823, 5128, 6410, 7646, 12820, 15292, 19115, 25640, 30584, 38230, 76460, 152920, 2450543, 4901086, 9802172, 12252715, 19604344, 24505430, 49010860, 98021720]

約数ペア:

[(1, 98021720), (2, 49010860), (4, 24505430), (5, 19604344), (8, 12252715), (10, 9802172), (20, 4901086), (40, 2450543), (641, 152920), (1282, 76460), (2564, 38230), (3205, 30584), (3823, 25640), (5128, 19115), (6410, 15292), (7646, 12820)]