28121800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{379}}^1$

素因数の和:455

約数の個数: 96

約数和(自身を含む): 76334400

約数和(自身を除く): 48212600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 53, 56, 70, 100, 106, 140, 175, 200, 212, 265, 280, 350, 371, 379, 424, 530, 700, 742, 758, 1060, 1325, 1400, 1484, 1516, 1855, 1895, 2120, 2650, 2653, 2968, 3032, 3710, 3790, 5300, 5306, 7420, 7580, 9275, 9475, 10600, 10612, 13265, 14840, 15160, 18550, 18950, 20087, 21224, 26530, 37100, 37900, 40174, 53060, 66325, 74200, 75800, 80348, 100435, 106120, 132650, 140609, 160696, 200870, 265300, 281218, 401740, 502175, 530600, 562436, 703045, 803480, 1004350, 1124872, 1406090, 2008700, 2812180, 3515225, 4017400, 5624360, 7030450, 14060900, 28121800]

約数ペア:

[(1, 28121800), (2, 14060900), (4, 7030450), (5, 5624360), (7, 4017400), (8, 3515225), (10, 2812180), (14, 2008700), (20, 1406090), (25, 1124872), (28, 1004350), (35, 803480), (40, 703045), (50, 562436), (53, 530600), (56, 502175), (70, 401740), (100, 281218), (106, 265300), (140, 200870), (175, 160696), (200, 140609), (212, 132650), (265, 106120), (280, 100435), (350, 80348), (371, 75800), (379, 74200), (424, 66325), (530, 53060), (700, 40174), (742, 37900), (758, 37100), (1060, 26530), (1325, 21224), (1400, 20087), (1484, 18950), (1516, 18550), (1855, 15160), (1895, 14840), (2120, 13265), (2650, 10612), (2653, 10600), (2968, 9475), (3032, 9275), (3710, 7580), (3790, 7420), (5300, 5306)]