305757480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1523}}^1$

素因数の和:1783

約数の個数: 128

約数和(自身を含む): 1053388800

約数和(自身を除く): 747631320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 239, 280, 420, 478, 717, 840, 956, 1195, 1434, 1523, 1673, 1912, 2390, 2868, 3046, 3346, 3585, 4569, 4780, 5019, 5736, 6092, 6692, 7170, 7615, 8365, 9138, 9560, 10038, 10661, 12184, 13384, 14340, 15230, 16730, 18276, 20076, 21322, 22845, 25095, 28680, 30460, 31983, 33460, 36552, 40152, 42644, 45690, 50190, 53305, 60920, 63966, 66920, 85288, 91380, 100380, 106610, 127932, 159915, 182760, 200760, 213220, 255864, 319830, 363997, 426440, 639660, 727994, 1091991, 1279320, 1455988, 1819985, 2183982, 2547979, 2911976, 3639970, 4367964, 5095958, 5459955, 7279940, 7643937, 8735928, 10191916, 10919910, 12739895, 14559880, 15287874, 20383832, 21839820, 25479790, 30575748, 38219685, 43679640, 50959580, 61151496, 76439370, 101919160, 152878740, 305757480]

約数ペア:

[(1, 305757480), (2, 152878740), (3, 101919160), (4, 76439370), (5, 61151496), (6, 50959580), (7, 43679640), (8, 38219685), (10, 30575748), (12, 25479790), (14, 21839820), (15, 20383832), (20, 15287874), (21, 14559880), (24, 12739895), (28, 10919910), (30, 10191916), (35, 8735928), (40, 7643937), (42, 7279940), (56, 5459955), (60, 5095958), (70, 4367964), (84, 3639970), (105, 2911976), (120, 2547979), (140, 2183982), (168, 1819985), (210, 1455988), (239, 1279320), (280, 1091991), (420, 727994), (478, 639660), (717, 426440), (840, 363997), (956, 319830), (1195, 255864), (1434, 213220), (1523, 200760), (1673, 182760), (1912, 159915), (2390, 127932), (2868, 106610), (3046, 100380), (3346, 91380), (3585, 85288), (4569, 66920), (4780, 63966), (5019, 60920), (5736, 53305), (6092, 50190), (6692, 45690), (7170, 42644), (7615, 40152), (8365, 36552), (9138, 33460), (9560, 31983), (10038, 30460), (10661, 28680), (12184, 25095), (13384, 22845), (14340, 21322), (15230, 20076), (16730, 18276)]