21630580

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{797}}^1$

素因数の和:888

約数の個数: 48

約数和(自身を含む): 48263040

約数和(自身を除く): 26632460

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 59, 92, 115, 118, 230, 236, 295, 460, 590, 797, 1180, 1357, 1594, 2714, 3188, 3985, 5428, 6785, 7970, 13570, 15940, 18331, 27140, 36662, 47023, 73324, 91655, 94046, 183310, 188092, 235115, 366620, 470230, 940460, 1081529, 2163058, 4326116, 5407645, 10815290, 21630580]

約数ペア:

[(1, 21630580), (2, 10815290), (4, 5407645), (5, 4326116), (10, 2163058), (20, 1081529), (23, 940460), (46, 470230), (59, 366620), (92, 235115), (115, 188092), (118, 183310), (230, 94046), (236, 91655), (295, 73324), (460, 47023), (590, 36662), (797, 27140), (1180, 18331), (1357, 15940), (1594, 13570), (2714, 7970), (3188, 6785), (3985, 5428)]