28914900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^3\times {\mathrm{281}}^1$

素因数の和:319

約数の個数: 144

約数和(自身を含む): 97910400

約数和(自身を除く): 68995500

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 49, 50, 60, 70, 75, 84, 98, 100, 105, 140, 147, 150, 175, 196, 210, 245, 281, 294, 300, 343, 350, 420, 490, 525, 562, 588, 686, 700, 735, 843, 980, 1029, 1050, 1124, 1225, 1372, 1405, 1470, 1686, 1715, 1967, 2058, 2100, 2450, 2810, 2940, 3372, 3430, 3675, 3934, 4116, 4215, 4900, 5145, 5620, 5901, 6860, 7025, 7350, 7868, 8430, 8575, 9835, 10290, 11802, 13769, 14050, 14700, 16860, 17150, 19670, 20580, 21075, 23604, 25725, 27538, 28100, 29505, 34300, 39340, 41307, 42150, 49175, 51450, 55076, 59010, 68845, 82614, 84300, 96383, 98350, 102900, 118020, 137690, 147525, 165228, 192766, 196700, 206535, 275380, 289149, 295050, 344225, 385532, 413070, 481915, 578298, 590100, 688450, 826140, 963830, 1032675, 1156596, 1376900, 1445745, 1927660, 2065350, 2409575, 2891490, 4130700, 4819150, 5782980, 7228725, 9638300, 14457450, 28914900]

約数ペア:

[(1, 28914900), (2, 14457450), (3, 9638300), (4, 7228725), (5, 5782980), (6, 4819150), (7, 4130700), (10, 2891490), (12, 2409575), (14, 2065350), (15, 1927660), (20, 1445745), (21, 1376900), (25, 1156596), (28, 1032675), (30, 963830), (35, 826140), (42, 688450), (49, 590100), (50, 578298), (60, 481915), (70, 413070), (75, 385532), (84, 344225), (98, 295050), (100, 289149), (105, 275380), (140, 206535), (147, 196700), (150, 192766), (175, 165228), (196, 147525), (210, 137690), (245, 118020), (281, 102900), (294, 98350), (300, 96383), (343, 84300), (350, 82614), (420, 68845), (490, 59010), (525, 55076), (562, 51450), (588, 49175), (686, 42150), (700, 41307), (735, 39340), (843, 34300), (980, 29505), (1029, 28100), (1050, 27538), (1124, 25725), (1225, 23604), (1372, 21075), (1405, 20580), (1470, 19670), (1686, 17150), (1715, 16860), (1967, 14700), (2058, 14050), (2100, 13769), (2450, 11802), (2810, 10290), (2940, 9835), (3372, 8575), (3430, 8430), (3675, 7868), (3934, 7350), (4116, 7025), (4215, 6860), (4900, 5901), (5145, 5620)]