20228895

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{853}}^1$

素因数の和:912

約数の個数: 48

約数和(自身を含む): 38368512

約数和(自身を除く): 18139617

約数列:

[1, 3, 5, 9, 15, 17, 31, 45, 51, 85, 93, 153, 155, 255, 279, 465, 527, 765, 853, 1395, 1581, 2559, 2635, 4265, 4743, 7677, 7905, 12795, 14501, 23715, 26443, 38385, 43503, 72505, 79329, 130509, 132215, 217515, 237987, 396645, 449531, 652545, 1189935, 1348593, 2247655, 4045779, 6742965, 20228895]

約数ペア:

[(1, 20228895), (3, 6742965), (5, 4045779), (9, 2247655), (15, 1348593), (17, 1189935), (31, 652545), (45, 449531), (51, 396645), (85, 237987), (93, 217515), (153, 132215), (155, 130509), (255, 79329), (279, 72505), (465, 43503), (527, 38385), (765, 26443), (853, 23715), (1395, 14501), (1581, 12795), (2559, 7905), (2635, 7677), (4265, 4743)]