279291220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{617}}^1\times {\mathrm{1741}}^1$

素因数の和:2380

約数の個数: 48

約数和(自身を含む): 633014928

約数和(自身を除く): 353723708

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 617, 1234, 1741, 2468, 3085, 3482, 6170, 6964, 8021, 8705, 12340, 16042, 17410, 22633, 32084, 34820, 40105, 45266, 80210, 90532, 113165, 160420, 226330, 452660, 1074197, 2148394, 4296788, 5370985, 10741970, 13964561, 21483940, 27929122, 55858244, 69822805, 139645610, 279291220]

約数ペア:

[(1, 279291220), (2, 139645610), (4, 69822805), (5, 55858244), (10, 27929122), (13, 21483940), (20, 13964561), (26, 10741970), (52, 5370985), (65, 4296788), (130, 2148394), (260, 1074197), (617, 452660), (1234, 226330), (1741, 160420), (2468, 113165), (3085, 90532), (3482, 80210), (6170, 45266), (6964, 40105), (8021, 34820), (8705, 32084), (12340, 22633), (16042, 17410)]