202100420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:357

約数の個数: 96

約数和(自身を含む): 471744000

約数和(自身を除く): 269643580

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 103, 116, 145, 170, 199, 206, 290, 340, 398, 412, 493, 515, 580, 796, 986, 995, 1030, 1751, 1972, 1990, 2060, 2465, 2987, 3383, 3502, 3980, 4930, 5771, 5974, 6766, 7004, 8755, 9860, 11542, 11948, 13532, 14935, 16915, 17510, 20497, 23084, 28855, 29870, 33830, 35020, 40994, 50779, 57710, 59740, 67660, 81988, 98107, 101558, 102485, 115420, 196214, 203116, 204970, 253895, 348449, 392428, 409940, 490535, 507790, 594413, 696898, 981070, 1015580, 1188826, 1393796, 1742245, 1962140, 2377652, 2972065, 3484490, 5944130, 6968980, 10105021, 11888260, 20210042, 40420084, 50525105, 101050210, 202100420]

約数ペア:

[(1, 202100420), (2, 101050210), (4, 50525105), (5, 40420084), (10, 20210042), (17, 11888260), (20, 10105021), (29, 6968980), (34, 5944130), (58, 3484490), (68, 2972065), (85, 2377652), (103, 1962140), (116, 1742245), (145, 1393796), (170, 1188826), (199, 1015580), (206, 981070), (290, 696898), (340, 594413), (398, 507790), (412, 490535), (493, 409940), (515, 392428), (580, 348449), (796, 253895), (986, 204970), (995, 203116), (1030, 196214), (1751, 115420), (1972, 102485), (1990, 101558), (2060, 98107), (2465, 81988), (2987, 67660), (3383, 59740), (3502, 57710), (3980, 50779), (4930, 40994), (5771, 35020), (5974, 33830), (6766, 29870), (7004, 28855), (8755, 23084), (9860, 20497), (11542, 17510), (11948, 16915), (13532, 14935)]