31125970

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{853}}^1$

素因数の和:990

約数の個数: 32

約数和(自身を含む): 58106160

約数和(自身を除く): 26980190

約数列:

[1, 2, 5, 10, 41, 82, 89, 178, 205, 410, 445, 853, 890, 1706, 3649, 4265, 7298, 8530, 18245, 34973, 36490, 69946, 75917, 151834, 174865, 349730, 379585, 759170, 3112597, 6225194, 15562985, 31125970]

約数ペア:

[(1, 31125970), (2, 15562985), (5, 6225194), (10, 3112597), (41, 759170), (82, 379585), (89, 349730), (178, 174865), (205, 151834), (410, 75917), (445, 69946), (853, 36490), (890, 34973), (1706, 18245), (3649, 8530), (4265, 7298)]