20365872

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:330

約数の個数: 80

約数和(自身を含む): 56127360

約数和(自身を除く): 35761488

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 137, 152, 163, 228, 274, 304, 326, 411, 456, 489, 548, 652, 822, 912, 978, 1096, 1304, 1644, 1956, 2192, 2603, 2608, 3097, 3288, 3912, 5206, 6194, 6576, 7809, 7824, 9291, 10412, 12388, 15618, 18582, 20824, 22331, 24776, 31236, 37164, 41648, 44662, 49552, 62472, 66993, 74328, 89324, 124944, 133986, 148656, 178648, 267972, 357296, 424289, 535944, 848578, 1071888, 1272867, 1697156, 2545734, 3394312, 5091468, 6788624, 10182936, 20365872]

約数ペア:

[(1, 20365872), (2, 10182936), (3, 6788624), (4, 5091468), (6, 3394312), (8, 2545734), (12, 1697156), (16, 1272867), (19, 1071888), (24, 848578), (38, 535944), (48, 424289), (57, 357296), (76, 267972), (114, 178648), (137, 148656), (152, 133986), (163, 124944), (228, 89324), (274, 74328), (304, 66993), (326, 62472), (411, 49552), (456, 44662), (489, 41648), (548, 37164), (652, 31236), (822, 24776), (912, 22331), (978, 20824), (1096, 18582), (1304, 15618), (1644, 12388), (1956, 10412), (2192, 9291), (2603, 7824), (2608, 7809), (3097, 6576), (3288, 6194), (3912, 5206)]