413865140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{4561}}^1$

素因数の和:4932

約数の個数: 48

約数和(自身を含む): 938859600

約数和(自身を除く): 524994460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 349, 698, 1396, 1745, 3490, 4537, 4561, 6980, 9074, 9122, 18148, 18244, 22685, 22805, 45370, 45610, 59293, 90740, 91220, 118586, 237172, 296465, 592930, 1185860, 1591789, 3183578, 6367156, 7958945, 15917890, 20693257, 31835780, 41386514, 82773028, 103466285, 206932570, 413865140]

約数ペア:

[(1, 413865140), (2, 206932570), (4, 103466285), (5, 82773028), (10, 41386514), (13, 31835780), (20, 20693257), (26, 15917890), (52, 7958945), (65, 6367156), (130, 3183578), (260, 1591789), (349, 1185860), (698, 592930), (1396, 296465), (1745, 237172), (3490, 118586), (4537, 91220), (4561, 90740), (6980, 59293), (9074, 45610), (9122, 45370), (18148, 22805), (18244, 22685)]