20850420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{521}}^1$

素因数の和:585

約数の個数: 96

約数和(自身を含む): 63141120

約数和(自身を除く): 42290700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 29, 30, 46, 58, 60, 69, 87, 92, 115, 116, 138, 145, 174, 230, 276, 290, 345, 348, 435, 460, 521, 580, 667, 690, 870, 1042, 1334, 1380, 1563, 1740, 2001, 2084, 2605, 2668, 3126, 3335, 4002, 5210, 6252, 6670, 7815, 8004, 10005, 10420, 11983, 13340, 15109, 15630, 20010, 23966, 30218, 31260, 35949, 40020, 45327, 47932, 59915, 60436, 71898, 75545, 90654, 119830, 143796, 151090, 179745, 181308, 226635, 239660, 302180, 347507, 359490, 453270, 695014, 718980, 906540, 1042521, 1390028, 1737535, 2085042, 3475070, 4170084, 5212605, 6950140, 10425210, 20850420]

約数ペア:

[(1, 20850420), (2, 10425210), (3, 6950140), (4, 5212605), (5, 4170084), (6, 3475070), (10, 2085042), (12, 1737535), (15, 1390028), (20, 1042521), (23, 906540), (29, 718980), (30, 695014), (46, 453270), (58, 359490), (60, 347507), (69, 302180), (87, 239660), (92, 226635), (115, 181308), (116, 179745), (138, 151090), (145, 143796), (174, 119830), (230, 90654), (276, 75545), (290, 71898), (345, 60436), (348, 59915), (435, 47932), (460, 45327), (521, 40020), (580, 35949), (667, 31260), (690, 30218), (870, 23966), (1042, 20010), (1334, 15630), (1380, 15109), (1563, 13340), (1740, 11983), (2001, 10420), (2084, 10005), (2605, 8004), (2668, 7815), (3126, 6670), (3335, 6252), (4002, 5210)]