205621920

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{20399}}^1$

素因数の和:20427

約数の個数: 144

約数和(自身を含む): 801964800

約数和(自身を除く): 596342880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 20399, 40798, 61197, 81596, 101995, 122394, 142793, 163192, 183591, 203990, 244788, 285586, 305985, 326384, 367182, 407980, 428379, 489576, 571172, 611970, 652768, 713965, 734364, 815960, 856758, 917955, 979152, 1142344, 1223940, 1285137, 1427930, 1468728, 1631920, 1713516, 1835910, 1958304, 2141895, 2284688, 2447880, 2570274, 2855860, 2937456, 3263840, 3427032, 3671820, 4283790, 4569376, 4895760, 5140548, 5711720, 5874912, 6425685, 6854064, 7343640, 8567580, 9791520, 10281096, 11423440, 12851370, 13708128, 14687280, 17135160, 20562192, 22846880, 25702740, 29374560, 34270320, 41124384, 51405480, 68540640, 102810960, 205621920]

約数ペア:

[(1, 205621920), (2, 102810960), (3, 68540640), (4, 51405480), (5, 41124384), (6, 34270320), (7, 29374560), (8, 25702740), (9, 22846880), (10, 20562192), (12, 17135160), (14, 14687280), (15, 13708128), (16, 12851370), (18, 11423440), (20, 10281096), (21, 9791520), (24, 8567580), (28, 7343640), (30, 6854064), (32, 6425685), (35, 5874912), (36, 5711720), (40, 5140548), (42, 4895760), (45, 4569376), (48, 4283790), (56, 3671820), (60, 3427032), (63, 3263840), (70, 2937456), (72, 2855860), (80, 2570274), (84, 2447880), (90, 2284688), (96, 2141895), (105, 1958304), (112, 1835910), (120, 1713516), (126, 1631920), (140, 1468728), (144, 1427930), (160, 1285137), (168, 1223940), (180, 1142344), (210, 979152), (224, 917955), (240, 856758), (252, 815960), (280, 734364), (288, 713965), (315, 652768), (336, 611970), (360, 571172), (420, 489576), (480, 428379), (504, 407980), (560, 367182), (630, 326384), (672, 305985), (720, 285586), (840, 244788), (1008, 203990), (1120, 183591), (1260, 163192), (1440, 142793), (1680, 122394), (2016, 101995), (2520, 81596), (3360, 61197), (5040, 40798), (10080, 20399)]