28523820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 90387360

約数和(自身を除く): 61863540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 29, 30, 39, 52, 58, 60, 65, 78, 87, 97, 116, 130, 145, 156, 169, 174, 194, 195, 260, 290, 291, 338, 348, 377, 388, 390, 435, 485, 507, 580, 582, 676, 754, 780, 845, 870, 970, 1014, 1131, 1164, 1261, 1455, 1508, 1690, 1740, 1885, 1940, 2028, 2262, 2522, 2535, 2813, 2910, 3380, 3770, 3783, 4524, 4901, 5044, 5070, 5626, 5655, 5820, 6305, 7540, 7566, 8439, 9802, 10140, 11252, 11310, 12610, 14065, 14703, 15132, 16393, 16878, 18915, 19604, 22620, 24505, 25220, 28130, 29406, 32786, 33756, 36569, 37830, 42195, 49010, 49179, 56260, 58812, 65572, 73138, 73515, 75660, 81965, 84390, 98020, 98358, 109707, 146276, 147030, 163930, 168780, 182845, 196716, 219414, 245895, 294060, 327860, 365690, 438828, 475397, 491790, 548535, 731380, 950794, 983580, 1097070, 1426191, 1901588, 2194140, 2376985, 2852382, 4753970, 5704764, 7130955, 9507940, 14261910, 28523820]

約数ペア:

[(1, 28523820), (2, 14261910), (3, 9507940), (4, 7130955), (5, 5704764), (6, 4753970), (10, 2852382), (12, 2376985), (13, 2194140), (15, 1901588), (20, 1426191), (26, 1097070), (29, 983580), (30, 950794), (39, 731380), (52, 548535), (58, 491790), (60, 475397), (65, 438828), (78, 365690), (87, 327860), (97, 294060), (116, 245895), (130, 219414), (145, 196716), (156, 182845), (169, 168780), (174, 163930), (194, 147030), (195, 146276), (260, 109707), (290, 98358), (291, 98020), (338, 84390), (348, 81965), (377, 75660), (388, 73515), (390, 73138), (435, 65572), (485, 58812), (507, 56260), (580, 49179), (582, 49010), (676, 42195), (754, 37830), (780, 36569), (845, 33756), (870, 32786), (970, 29406), (1014, 28130), (1131, 25220), (1164, 24505), (1261, 22620), (1455, 19604), (1508, 18915), (1690, 16878), (1740, 16393), (1885, 15132), (1940, 14703), (2028, 14065), (2262, 12610), (2522, 11310), (2535, 11252), (2813, 10140), (2910, 9802), (3380, 8439), (3770, 7566), (3783, 7540), (4524, 6305), (4901, 5820), (5044, 5655), (5070, 5626)]