20565372975

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{557}}^1\times {\mathrm{70327}}^1$

素因数の和:70904

約数の個数: 48

約数和(自身を含む): 38929079808

約数和(自身を除く): 18363706833

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 557, 1671, 2785, 3899, 8355, 11697, 13925, 19495, 41775, 58485, 70327, 97475, 210981, 292425, 351635, 492289, 1054905, 1476867, 1758175, 2461445, 5274525, 7384335, 12307225, 36921675, 39172139, 117516417, 195860695, 274204973, 587582085, 822614919, 979303475, 1371024865, 2937910425, 4113074595, 6855124325, 20565372975]

約数ペア:

[(1, 20565372975), (3, 6855124325), (5, 4113074595), (7, 2937910425), (15, 1371024865), (21, 979303475), (25, 822614919), (35, 587582085), (75, 274204973), (105, 195860695), (175, 117516417), (525, 39172139), (557, 36921675), (1671, 12307225), (2785, 7384335), (3899, 5274525), (8355, 2461445), (11697, 1758175), (13925, 1476867), (19495, 1054905), (41775, 492289), (58485, 351635), (70327, 292425), (97475, 210981)]