20144880

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{571}}^1$

素因数の和:604

約数の個数: 180

約数和(自身を含む): 78836472

約数和(自身を除く): 58691592

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 571, 588, 630, 720, 735, 784, 840, 882, 980, 1008, 1142, 1176, 1260, 1470, 1680, 1713, 1764, 1960, 2205, 2284, 2352, 2520, 2855, 2940, 3426, 3528, 3920, 3997, 4410, 4568, 5040, 5139, 5710, 5880, 6852, 7056, 7994, 8565, 8820, 9136, 10278, 11420, 11760, 11991, 13704, 15988, 17130, 17640, 19985, 20556, 22840, 23982, 25695, 27408, 27979, 31976, 34260, 35280, 35973, 39970, 41112, 45680, 47964, 51390, 55958, 59955, 63952, 68520, 71946, 79940, 82224, 83937, 95928, 102780, 111916, 119910, 137040, 139895, 143892, 159880, 167874, 179865, 191856, 205560, 223832, 239820, 251811, 279790, 287784, 319760, 335748, 359730, 411120, 419685, 447664, 479640, 503622, 559580, 575568, 671496, 719460, 839370, 959280, 1007244, 1119160, 1259055, 1342992, 1438920, 1678740, 2014488, 2238320, 2518110, 2877840, 3357480, 4028976, 5036220, 6714960, 10072440, 20144880]

約数ペア:

[(1, 20144880), (2, 10072440), (3, 6714960), (4, 5036220), (5, 4028976), (6, 3357480), (7, 2877840), (8, 2518110), (9, 2238320), (10, 2014488), (12, 1678740), (14, 1438920), (15, 1342992), (16, 1259055), (18, 1119160), (20, 1007244), (21, 959280), (24, 839370), (28, 719460), (30, 671496), (35, 575568), (36, 559580), (40, 503622), (42, 479640), (45, 447664), (48, 419685), (49, 411120), (56, 359730), (60, 335748), (63, 319760), (70, 287784), (72, 279790), (80, 251811), (84, 239820), (90, 223832), (98, 205560), (105, 191856), (112, 179865), (120, 167874), (126, 159880), (140, 143892), (144, 139895), (147, 137040), (168, 119910), (180, 111916), (196, 102780), (210, 95928), (240, 83937), (245, 82224), (252, 79940), (280, 71946), (294, 68520), (315, 63952), (336, 59955), (360, 55958), (392, 51390), (420, 47964), (441, 45680), (490, 41112), (504, 39970), (560, 35973), (571, 35280), (588, 34260), (630, 31976), (720, 27979), (735, 27408), (784, 25695), (840, 23982), (882, 22840), (980, 20556), (1008, 19985), (1142, 17640), (1176, 17130), (1260, 15988), (1470, 13704), (1680, 11991), (1713, 11760), (1764, 11420), (1960, 10278), (2205, 9136), (2284, 8820), (2352, 8565), (2520, 7994), (2855, 7056), (2940, 6852), (3426, 5880), (3528, 5710), (3920, 5139), (3997, 5040), (4410, 4568)]