61261720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{117811}}^1$

素因数の和:117835

約数の個数: 32

約数和(自身を含む): 148443120

約数和(自身を除く): 87181400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 117811, 235622, 471244, 589055, 942488, 1178110, 1531543, 2356220, 3063086, 4712440, 6126172, 7657715, 12252344, 15315430, 30630860, 61261720]

約数ペア:

[(1, 61261720), (2, 30630860), (4, 15315430), (5, 12252344), (8, 7657715), (10, 6126172), (13, 4712440), (20, 3063086), (26, 2356220), (40, 1531543), (52, 1178110), (65, 942488), (104, 589055), (130, 471244), (260, 235622), (520, 117811)]