25302980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 54722304

約数和(自身を除く): 29419324

約数列:

[1, 2, 4, 5, 10, 20, 71, 103, 142, 173, 206, 284, 346, 355, 412, 515, 692, 710, 865, 1030, 1420, 1730, 2060, 3460, 7313, 12283, 14626, 17819, 24566, 29252, 35638, 36565, 49132, 61415, 71276, 73130, 89095, 122830, 146260, 178190, 245660, 356380, 1265149, 2530298, 5060596, 6325745, 12651490, 25302980]

約数ペア:

[(1, 25302980), (2, 12651490), (4, 6325745), (5, 5060596), (10, 2530298), (20, 1265149), (71, 356380), (103, 245660), (142, 178190), (173, 146260), (206, 122830), (284, 89095), (346, 73130), (355, 71276), (412, 61415), (515, 49132), (692, 36565), (710, 35638), (865, 29252), (1030, 24566), (1420, 17819), (1730, 14626), (2060, 12283), (3460, 7313)]