21732502180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1181}}^1\times {\mathrm{12959}}^1$

素因数の和:14220

約数の個数: 48

約数和(自身を含む): 46323809280

約数和(自身を除く): 24591307100

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1181, 1420, 2362, 4724, 5905, 11810, 12959, 23620, 25918, 51836, 64795, 83851, 129590, 167702, 259180, 335404, 419255, 838510, 920089, 1677020, 1840178, 3680356, 4600445, 9200890, 15304579, 18401780, 30609158, 61218316, 76522895, 153045790, 306091580, 1086625109, 2173250218, 4346500436, 5433125545, 10866251090, 21732502180]

約数ペア:

[(1, 21732502180), (2, 10866251090), (4, 5433125545), (5, 4346500436), (10, 2173250218), (20, 1086625109), (71, 306091580), (142, 153045790), (284, 76522895), (355, 61218316), (710, 30609158), (1181, 18401780), (1420, 15304579), (2362, 9200890), (4724, 4600445), (5905, 3680356), (11810, 1840178), (12959, 1677020), (23620, 920089), (25918, 838510), (51836, 419255), (64795, 335404), (83851, 259180), (129590, 167702)]