28547400

素因数分解:

$2^3\times 3^1\times 5^2\times 7^2\times {\mathrm{971}}^1$

素因数の和:1004

約数の個数: 144

約数和(自身を含む): 103051440

約数和(自身を除く): 74504040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 49, 50, 56, 60, 70, 75, 84, 98, 100, 105, 120, 140, 147, 150, 168, 175, 196, 200, 210, 245, 280, 294, 300, 350, 392, 420, 490, 525, 588, 600, 700, 735, 840, 971, 980, 1050, 1176, 1225, 1400, 1470, 1942, 1960, 2100, 2450, 2913, 2940, 3675, 3884, 4200, 4855, 4900, 5826, 5880, 6797, 7350, 7768, 9710, 9800, 11652, 13594, 14565, 14700, 19420, 20391, 23304, 24275, 27188, 29130, 29400, 33985, 38840, 40782, 47579, 48550, 54376, 58260, 67970, 72825, 81564, 95158, 97100, 101955, 116520, 135940, 142737, 145650, 163128, 169925, 190316, 194200, 203910, 237895, 271880, 285474, 291300, 339850, 380632, 407820, 475790, 509775, 570948, 582600, 679700, 713685, 815640, 951580, 1019550, 1141896, 1189475, 1359400, 1427370, 1903160, 2039100, 2378950, 2854740, 3568425, 4078200, 4757900, 5709480, 7136850, 9515800, 14273700, 28547400]

約数ペア:

[(1, 28547400), (2, 14273700), (3, 9515800), (4, 7136850), (5, 5709480), (6, 4757900), (7, 4078200), (8, 3568425), (10, 2854740), (12, 2378950), (14, 2039100), (15, 1903160), (20, 1427370), (21, 1359400), (24, 1189475), (25, 1141896), (28, 1019550), (30, 951580), (35, 815640), (40, 713685), (42, 679700), (49, 582600), (50, 570948), (56, 509775), (60, 475790), (70, 407820), (75, 380632), (84, 339850), (98, 291300), (100, 285474), (105, 271880), (120, 237895), (140, 203910), (147, 194200), (150, 190316), (168, 169925), (175, 163128), (196, 145650), (200, 142737), (210, 135940), (245, 116520), (280, 101955), (294, 97100), (300, 95158), (350, 81564), (392, 72825), (420, 67970), (490, 58260), (525, 54376), (588, 48550), (600, 47579), (700, 40782), (735, 38840), (840, 33985), (971, 29400), (980, 29130), (1050, 27188), (1176, 24275), (1225, 23304), (1400, 20391), (1470, 19420), (1942, 14700), (1960, 14565), (2100, 13594), (2450, 11652), (2913, 9800), (2940, 9710), (3675, 7768), (3884, 7350), (4200, 6797), (4855, 5880), (4900, 5826)]