198754640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^2$

素因数の和:265

約数の個数: 120

約数和(自身を含む): 550298112

約数和(自身を除く): 351543472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 107, 112, 124, 140, 155, 214, 217, 248, 280, 310, 428, 434, 496, 535, 560, 620, 749, 856, 868, 1070, 1085, 1240, 1498, 1712, 1736, 2140, 2170, 2480, 2996, 3317, 3472, 3745, 4280, 4340, 5992, 6634, 7490, 8560, 8680, 11449, 11984, 13268, 14980, 16585, 17360, 22898, 23219, 26536, 29960, 33170, 45796, 46438, 53072, 57245, 59920, 66340, 80143, 91592, 92876, 114490, 116095, 132680, 160286, 183184, 185752, 228980, 232190, 265360, 320572, 354919, 371504, 400715, 457960, 464380, 641144, 709838, 801430, 915920, 928760, 1282288, 1419676, 1602860, 1774595, 1857520, 2484433, 2839352, 3205720, 3549190, 4968866, 5678704, 6411440, 7098380, 9937732, 12422165, 14196760, 19875464, 24844330, 28393520, 39750928, 49688660, 99377320, 198754640]

約数ペア:

[(1, 198754640), (2, 99377320), (4, 49688660), (5, 39750928), (7, 28393520), (8, 24844330), (10, 19875464), (14, 14196760), (16, 12422165), (20, 9937732), (28, 7098380), (31, 6411440), (35, 5678704), (40, 4968866), (56, 3549190), (62, 3205720), (70, 2839352), (80, 2484433), (107, 1857520), (112, 1774595), (124, 1602860), (140, 1419676), (155, 1282288), (214, 928760), (217, 915920), (248, 801430), (280, 709838), (310, 641144), (428, 464380), (434, 457960), (496, 400715), (535, 371504), (560, 354919), (620, 320572), (749, 265360), (856, 232190), (868, 228980), (1070, 185752), (1085, 183184), (1240, 160286), (1498, 132680), (1712, 116095), (1736, 114490), (2140, 92876), (2170, 91592), (2480, 80143), (2996, 66340), (3317, 59920), (3472, 57245), (3745, 53072), (4280, 46438), (4340, 45796), (5992, 33170), (6634, 29960), (7490, 26536), (8560, 23219), (8680, 22898), (11449, 17360), (11984, 16585), (13268, 14980)]