65464540

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{409}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 141341760

約数和(自身を除く): 75877220

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 151, 212, 265, 302, 409, 530, 604, 755, 818, 1060, 1510, 1636, 2045, 3020, 4090, 8003, 8180, 16006, 21677, 32012, 40015, 43354, 61759, 80030, 86708, 108385, 123518, 160060, 216770, 247036, 308795, 433540, 617590, 1235180, 3273227, 6546454, 13092908, 16366135, 32732270, 65464540]

約数ペア:

[(1, 65464540), (2, 32732270), (4, 16366135), (5, 13092908), (10, 6546454), (20, 3273227), (53, 1235180), (106, 617590), (151, 433540), (212, 308795), (265, 247036), (302, 216770), (409, 160060), (530, 123518), (604, 108385), (755, 86708), (818, 80030), (1060, 61759), (1510, 43354), (1636, 40015), (2045, 32012), (3020, 21677), (4090, 16006), (8003, 8180)]