28121180

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{541}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 62282304

約数和(自身を除く): 34161124

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 113, 115, 226, 230, 452, 460, 541, 565, 1082, 1130, 2164, 2260, 2599, 2705, 5198, 5410, 10396, 10820, 12443, 12995, 24886, 25990, 49772, 51980, 61133, 62215, 122266, 124430, 244532, 248860, 305665, 611330, 1222660, 1406059, 2812118, 5624236, 7030295, 14060590, 28121180]

約数ペア:

[(1, 28121180), (2, 14060590), (4, 7030295), (5, 5624236), (10, 2812118), (20, 1406059), (23, 1222660), (46, 611330), (92, 305665), (113, 248860), (115, 244532), (226, 124430), (230, 122266), (452, 62215), (460, 61133), (541, 51980), (565, 49772), (1082, 25990), (1130, 24886), (2164, 12995), (2260, 12443), (2599, 10820), (2705, 10396), (5198, 5410)]