80509020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{21997}}^1$

素因数の和:22070

約数の個数: 48

約数和(自身を含む): 229131168

約数和(自身を除く): 148622148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 21997, 43994, 65991, 87988, 109985, 131982, 219970, 263964, 329955, 439940, 659910, 1319820, 1341817, 2683634, 4025451, 5367268, 6709085, 8050902, 13418170, 16101804, 20127255, 26836340, 40254510, 80509020]

約数ペア:

[(1, 80509020), (2, 40254510), (3, 26836340), (4, 20127255), (5, 16101804), (6, 13418170), (10, 8050902), (12, 6709085), (15, 5367268), (20, 4025451), (30, 2683634), (60, 1341817), (61, 1319820), (122, 659910), (183, 439940), (244, 329955), (305, 263964), (366, 219970), (610, 131982), (732, 109985), (915, 87988), (1220, 65991), (1830, 43994), (3660, 21997)]