19065740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{383}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 42577920

約数和(自身を除く): 23512180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 131, 190, 262, 380, 383, 524, 655, 766, 1310, 1532, 1915, 2489, 2620, 3830, 4978, 7277, 7660, 9956, 12445, 14554, 24890, 29108, 36385, 49780, 50173, 72770, 100346, 145540, 200692, 250865, 501730, 953287, 1003460, 1906574, 3813148, 4766435, 9532870, 19065740]

約数ペア:

[(1, 19065740), (2, 9532870), (4, 4766435), (5, 3813148), (10, 1906574), (19, 1003460), (20, 953287), (38, 501730), (76, 250865), (95, 200692), (131, 145540), (190, 100346), (262, 72770), (380, 50173), (383, 49780), (524, 36385), (655, 29108), (766, 24890), (1310, 14554), (1532, 12445), (1915, 9956), (2489, 7660), (2620, 7277), (3830, 4978)]