205891920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21997}}^1$

素因数の和:22029

約数の個数: 120

約数和(自身を含む): 744676296

約数和(自身を除く): 538784376

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2340, 3120, 4680, 9360, 21997, 43994, 65991, 87988, 109985, 131982, 175976, 197973, 219970, 263964, 285961, 329955, 351952, 395946, 439940, 527928, 571922, 659910, 791892, 857883, 879880, 989865, 1055856, 1143844, 1319820, 1429805, 1583784, 1715766, 1759760, 1979730, 2287688, 2573649, 2639640, 2859610, 3167568, 3431532, 3959460, 4289415, 4575376, 5147298, 5279280, 5719220, 6863064, 7918920, 8578830, 10294596, 11438440, 12868245, 13726128, 15837840, 17157660, 20589192, 22876880, 25736490, 34315320, 41178384, 51472980, 68630640, 102945960, 205891920]

約数ペア:

[(1, 205891920), (2, 102945960), (3, 68630640), (4, 51472980), (5, 41178384), (6, 34315320), (8, 25736490), (9, 22876880), (10, 20589192), (12, 17157660), (13, 15837840), (15, 13726128), (16, 12868245), (18, 11438440), (20, 10294596), (24, 8578830), (26, 7918920), (30, 6863064), (36, 5719220), (39, 5279280), (40, 5147298), (45, 4575376), (48, 4289415), (52, 3959460), (60, 3431532), (65, 3167568), (72, 2859610), (78, 2639640), (80, 2573649), (90, 2287688), (104, 1979730), (117, 1759760), (120, 1715766), (130, 1583784), (144, 1429805), (156, 1319820), (180, 1143844), (195, 1055856), (208, 989865), (234, 879880), (240, 857883), (260, 791892), (312, 659910), (360, 571922), (390, 527928), (468, 439940), (520, 395946), (585, 351952), (624, 329955), (720, 285961), (780, 263964), (936, 219970), (1040, 197973), (1170, 175976), (1560, 131982), (1872, 109985), (2340, 87988), (3120, 65991), (4680, 43994), (9360, 21997)]