8020090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 17418240

約数和(自身を除く): 9398150

約数列:

[1, 2, 5, 10, 13, 17, 19, 26, 34, 38, 65, 85, 95, 130, 170, 190, 191, 221, 247, 323, 382, 442, 494, 646, 955, 1105, 1235, 1615, 1910, 2210, 2470, 2483, 3230, 3247, 3629, 4199, 4966, 6494, 7258, 8398, 12415, 16235, 18145, 20995, 24830, 32470, 36290, 41990, 42211, 47177, 61693, 84422, 94354, 123386, 211055, 235885, 308465, 422110, 471770, 616930, 802009, 1604018, 4010045, 8020090]

約数ペア:

[(1, 8020090), (2, 4010045), (5, 1604018), (10, 802009), (13, 616930), (17, 471770), (19, 422110), (26, 308465), (34, 235885), (38, 211055), (65, 123386), (85, 94354), (95, 84422), (130, 61693), (170, 47177), (190, 42211), (191, 41990), (221, 36290), (247, 32470), (323, 24830), (382, 20995), (442, 18145), (494, 16235), (646, 12415), (955, 8398), (1105, 7258), (1235, 6494), (1615, 4966), (1910, 4199), (2210, 3629), (2470, 3247), (2483, 3230)]