66140860

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 141886080

約数和(自身を除く): 75745220

約数列:

[1, 2, 4, 5, 10, 20, 101, 137, 202, 239, 274, 404, 478, 505, 548, 685, 956, 1010, 1195, 1370, 2020, 2390, 2740, 4780, 13837, 24139, 27674, 32743, 48278, 55348, 65486, 69185, 96556, 120695, 130972, 138370, 163715, 241390, 276740, 327430, 482780, 654860, 3307043, 6614086, 13228172, 16535215, 33070430, 66140860]

約数ペア:

[(1, 66140860), (2, 33070430), (4, 16535215), (5, 13228172), (10, 6614086), (20, 3307043), (101, 654860), (137, 482780), (202, 327430), (239, 276740), (274, 241390), (404, 163715), (478, 138370), (505, 130972), (548, 120695), (685, 96556), (956, 69185), (1010, 65486), (1195, 55348), (1370, 48278), (2020, 32743), (2390, 27674), (2740, 24139), (4780, 13837)]