919478620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1\times {\mathrm{4513}}^1$

素因数の和:4750

約数の個数: 48

約数和(自身を含む): 1974748608

約数和(自身を除く): 1055269988

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 167, 244, 305, 334, 610, 668, 835, 1220, 1670, 3340, 4513, 9026, 10187, 18052, 20374, 22565, 40748, 45130, 50935, 90260, 101870, 203740, 275293, 550586, 753671, 1101172, 1376465, 1507342, 2752930, 3014684, 3768355, 5505860, 7536710, 15073420, 45973931, 91947862, 183895724, 229869655, 459739310, 919478620]

約数ペア:

[(1, 919478620), (2, 459739310), (4, 229869655), (5, 183895724), (10, 91947862), (20, 45973931), (61, 15073420), (122, 7536710), (167, 5505860), (244, 3768355), (305, 3014684), (334, 2752930), (610, 1507342), (668, 1376465), (835, 1101172), (1220, 753671), (1670, 550586), (3340, 275293), (4513, 203740), (9026, 101870), (10187, 90260), (18052, 50935), (20374, 45130), (22565, 40748)]