983979980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{48857}}^1$

素因数の和:48938

約数の個数: 48

約数和(自身を含む): 2216198880

約数和(自身を除く): 1232218900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 190, 212, 265, 380, 530, 1007, 1060, 2014, 4028, 5035, 10070, 20140, 48857, 97714, 195428, 244285, 488570, 928283, 977140, 1856566, 2589421, 3713132, 4641415, 5178842, 9282830, 10357684, 12947105, 18565660, 25894210, 49198999, 51788420, 98397998, 196795996, 245994995, 491989990, 983979980]

約数ペア:

[(1, 983979980), (2, 491989990), (4, 245994995), (5, 196795996), (10, 98397998), (19, 51788420), (20, 49198999), (38, 25894210), (53, 18565660), (76, 12947105), (95, 10357684), (106, 9282830), (190, 5178842), (212, 4641415), (265, 3713132), (380, 2589421), (530, 1856566), (1007, 977140), (1060, 928283), (2014, 488570), (4028, 244285), (5035, 195428), (10070, 97714), (20140, 48857)]