19621260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1787}}^1$

素因数の和:1863

約数の個数: 72

約数和(自身を含む): 60527376

約数和(自身を除く): 40906116

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1787, 1830, 2196, 2745, 3574, 3660, 5361, 5490, 7148, 8935, 10722, 10980, 16083, 17870, 21444, 26805, 32166, 35740, 53610, 64332, 80415, 107220, 109007, 160830, 218014, 321660, 327021, 436028, 545035, 654042, 981063, 1090070, 1308084, 1635105, 1962126, 2180140, 3270210, 3924252, 4905315, 6540420, 9810630, 19621260]

約数ペア:

[(1, 19621260), (2, 9810630), (3, 6540420), (4, 4905315), (5, 3924252), (6, 3270210), (9, 2180140), (10, 1962126), (12, 1635105), (15, 1308084), (18, 1090070), (20, 981063), (30, 654042), (36, 545035), (45, 436028), (60, 327021), (61, 321660), (90, 218014), (122, 160830), (180, 109007), (183, 107220), (244, 80415), (305, 64332), (366, 53610), (549, 35740), (610, 32166), (732, 26805), (915, 21444), (1098, 17870), (1220, 16083), (1787, 10980), (1830, 10722), (2196, 8935), (2745, 7148), (3574, 5490), (3660, 5361)]