20503400

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{3307}}^1$

素因数の和:3354

約数の個数: 48

約数和(自身を含む): 49223040

約数和(自身を除く): 28719640

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 3100, 3307, 6200, 6614, 13228, 16535, 26456, 33070, 66140, 82675, 102517, 132280, 165350, 205034, 330700, 410068, 512585, 661400, 820136, 1025170, 2050340, 2562925, 4100680, 5125850, 10251700, 20503400]

約数ペア:

[(1, 20503400), (2, 10251700), (4, 5125850), (5, 4100680), (8, 2562925), (10, 2050340), (20, 1025170), (25, 820136), (31, 661400), (40, 512585), (50, 410068), (62, 330700), (100, 205034), (124, 165350), (155, 132280), (200, 102517), (248, 82675), (310, 66140), (620, 33070), (775, 26456), (1240, 16535), (1550, 13228), (3100, 6614), (3307, 6200)]