18193700

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:154

約数の個数: 108

約数和(自身を含む): 47496960

約数和(自身を除く): 29303260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 47, 49, 50, 70, 79, 94, 98, 100, 140, 158, 175, 188, 196, 235, 245, 316, 329, 350, 395, 470, 490, 553, 658, 700, 790, 940, 980, 1106, 1175, 1225, 1316, 1580, 1645, 1975, 2212, 2303, 2350, 2450, 2765, 3290, 3713, 3871, 3950, 4606, 4700, 4900, 5530, 6580, 7426, 7742, 7900, 8225, 9212, 11060, 11515, 13825, 14852, 15484, 16450, 18565, 19355, 23030, 25991, 27650, 32900, 37130, 38710, 46060, 51982, 55300, 57575, 74260, 77420, 92825, 96775, 103964, 115150, 129955, 181937, 185650, 193550, 230300, 259910, 363874, 371300, 387100, 519820, 649775, 727748, 909685, 1299550, 1819370, 2599100, 3638740, 4548425, 9096850, 18193700]

約数ペア:

[(1, 18193700), (2, 9096850), (4, 4548425), (5, 3638740), (7, 2599100), (10, 1819370), (14, 1299550), (20, 909685), (25, 727748), (28, 649775), (35, 519820), (47, 387100), (49, 371300), (50, 363874), (70, 259910), (79, 230300), (94, 193550), (98, 185650), (100, 181937), (140, 129955), (158, 115150), (175, 103964), (188, 96775), (196, 92825), (235, 77420), (245, 74260), (316, 57575), (329, 55300), (350, 51982), (395, 46060), (470, 38710), (490, 37130), (553, 32900), (658, 27650), (700, 25991), (790, 23030), (940, 19355), (980, 18565), (1106, 16450), (1175, 15484), (1225, 14852), (1316, 13825), (1580, 11515), (1645, 11060), (1975, 9212), (2212, 8225), (2303, 7900), (2350, 7742), (2450, 7426), (2765, 6580), (3290, 5530), (3713, 4900), (3871, 4700), (3950, 4606)]