20487150

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{859}}^1$

素因数の和:930

約数の個数: 72

約数和(自身を含む): 56145960

約数和(自身を除く): 35658810

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 53, 75, 90, 106, 150, 159, 225, 265, 318, 450, 477, 530, 795, 859, 954, 1325, 1590, 1718, 2385, 2577, 2650, 3975, 4295, 4770, 5154, 7731, 7950, 8590, 11925, 12885, 15462, 21475, 23850, 25770, 38655, 42950, 45527, 64425, 77310, 91054, 128850, 136581, 193275, 227635, 273162, 386550, 409743, 455270, 682905, 819486, 1138175, 1365810, 2048715, 2276350, 3414525, 4097430, 6829050, 10243575, 20487150]

約数ペア:

[(1, 20487150), (2, 10243575), (3, 6829050), (5, 4097430), (6, 3414525), (9, 2276350), (10, 2048715), (15, 1365810), (18, 1138175), (25, 819486), (30, 682905), (45, 455270), (50, 409743), (53, 386550), (75, 273162), (90, 227635), (106, 193275), (150, 136581), (159, 128850), (225, 91054), (265, 77310), (318, 64425), (450, 45527), (477, 42950), (530, 38655), (795, 25770), (859, 23850), (954, 21475), (1325, 15462), (1590, 12885), (1718, 11925), (2385, 8590), (2577, 7950), (2650, 7731), (3975, 5154), (4295, 4770)]