18998640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{26387}}^1$

素因数の和:26406

約数の個数: 60

約数和(自身を含む): 63806184

約数和(自身を除く): 44807544

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 26387, 52774, 79161, 105548, 131935, 158322, 211096, 237483, 263870, 316644, 395805, 422192, 474966, 527740, 633288, 791610, 949932, 1055480, 1187415, 1266576, 1583220, 1899864, 2110960, 2374830, 3166440, 3799728, 4749660, 6332880, 9499320, 18998640]

約数ペア:

[(1, 18998640), (2, 9499320), (3, 6332880), (4, 4749660), (5, 3799728), (6, 3166440), (8, 2374830), (9, 2110960), (10, 1899864), (12, 1583220), (15, 1266576), (16, 1187415), (18, 1055480), (20, 949932), (24, 791610), (30, 633288), (36, 527740), (40, 474966), (45, 422192), (48, 395805), (60, 316644), (72, 263870), (80, 237483), (90, 211096), (120, 158322), (144, 131935), (180, 105548), (240, 79161), (360, 52774), (720, 26387)]