219629540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{2393}}^1$

素因数の和:2768

約数の個数: 48

約数和(自身を含む): 498315888

約数和(自身を除く): 278686348

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 353, 706, 1412, 1765, 2393, 3530, 4589, 4786, 7060, 9178, 9572, 11965, 18356, 22945, 23930, 31109, 45890, 47860, 62218, 91780, 124436, 155545, 311090, 622180, 844729, 1689458, 3378916, 4223645, 8447290, 10981477, 16894580, 21962954, 43925908, 54907385, 109814770, 219629540]

約数ペア:

[(1, 219629540), (2, 109814770), (4, 54907385), (5, 43925908), (10, 21962954), (13, 16894580), (20, 10981477), (26, 8447290), (52, 4223645), (65, 3378916), (130, 1689458), (260, 844729), (353, 622180), (706, 311090), (1412, 155545), (1765, 124436), (2393, 91780), (3530, 62218), (4589, 47860), (4786, 45890), (7060, 31109), (9178, 23930), (9572, 22945), (11965, 18356)]