291215420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{4621}}^1$

素因数の和:4790

約数の個数: 48

約数和(自身を含む): 642938688

約数和(自身を除く): 351723268

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 137, 230, 274, 460, 548, 685, 1370, 2740, 3151, 4621, 6302, 9242, 12604, 15755, 18484, 23105, 31510, 46210, 63020, 92420, 106283, 212566, 425132, 531415, 633077, 1062830, 1266154, 2125660, 2532308, 3165385, 6330770, 12661540, 14560771, 29121542, 58243084, 72803855, 145607710, 291215420]

約数ペア:

[(1, 291215420), (2, 145607710), (4, 72803855), (5, 58243084), (10, 29121542), (20, 14560771), (23, 12661540), (46, 6330770), (92, 3165385), (115, 2532308), (137, 2125660), (230, 1266154), (274, 1062830), (460, 633077), (548, 531415), (685, 425132), (1370, 212566), (2740, 106283), (3151, 92420), (4621, 63020), (6302, 46210), (9242, 31510), (12604, 23105), (15755, 18484)]