20872450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:331

約数の個数: 48

約数和(自身を含む): 41425920

約数和(自身を除く): 20553470

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 127, 173, 190, 254, 346, 475, 635, 865, 950, 1270, 1730, 2413, 3175, 3287, 4325, 4826, 6350, 6574, 8650, 12065, 16435, 21971, 24130, 32870, 43942, 60325, 82175, 109855, 120650, 164350, 219710, 417449, 549275, 834898, 1098550, 2087245, 4174490, 10436225, 20872450]

約数ペア:

[(1, 20872450), (2, 10436225), (5, 4174490), (10, 2087245), (19, 1098550), (25, 834898), (38, 549275), (50, 417449), (95, 219710), (127, 164350), (173, 120650), (190, 109855), (254, 82175), (346, 60325), (475, 43942), (635, 32870), (865, 24130), (950, 21971), (1270, 16435), (1730, 12065), (2413, 8650), (3175, 6574), (3287, 6350), (4325, 4826)]