27393880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 63835200

約数和(自身を除く): 36441320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 103, 109, 122, 206, 218, 244, 305, 412, 436, 488, 515, 545, 610, 824, 872, 1030, 1090, 1220, 2060, 2180, 2440, 4120, 4360, 6283, 6649, 11227, 12566, 13298, 22454, 25132, 26596, 31415, 33245, 44908, 50264, 53192, 56135, 62830, 66490, 89816, 112270, 125660, 132980, 224540, 251320, 265960, 449080, 684847, 1369694, 2739388, 3424235, 5478776, 6848470, 13696940, 27393880]

約数ペア:

[(1, 27393880), (2, 13696940), (4, 6848470), (5, 5478776), (8, 3424235), (10, 2739388), (20, 1369694), (40, 684847), (61, 449080), (103, 265960), (109, 251320), (122, 224540), (206, 132980), (218, 125660), (244, 112270), (305, 89816), (412, 66490), (436, 62830), (488, 56135), (515, 53192), (545, 50264), (610, 44908), (824, 33245), (872, 31415), (1030, 26596), (1090, 25132), (1220, 22454), (2060, 13298), (2180, 12566), (2440, 11227), (4120, 6649), (4360, 6283)]