20652840

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1471}}^1$

素因数の和:1504

約数の個数: 128

約数和(自身を含む): 74188800

約数和(自身を除く): 53535960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 90, 104, 108, 117, 120, 130, 135, 156, 180, 195, 216, 234, 260, 270, 312, 351, 360, 390, 468, 520, 540, 585, 702, 780, 936, 1080, 1170, 1404, 1471, 1560, 1755, 2340, 2808, 2942, 3510, 4413, 4680, 5884, 7020, 7355, 8826, 11768, 13239, 14040, 14710, 17652, 19123, 22065, 26478, 29420, 35304, 38246, 39717, 44130, 52956, 57369, 58840, 66195, 76492, 79434, 88260, 95615, 105912, 114738, 132390, 152984, 158868, 172107, 176520, 191230, 198585, 229476, 264780, 286845, 317736, 344214, 382460, 397170, 458952, 516321, 529560, 573690, 688428, 764920, 794340, 860535, 1032642, 1147380, 1376856, 1588680, 1721070, 2065284, 2294760, 2581605, 3442140, 4130568, 5163210, 6884280, 10326420, 20652840]

約数ペア:

[(1, 20652840), (2, 10326420), (3, 6884280), (4, 5163210), (5, 4130568), (6, 3442140), (8, 2581605), (9, 2294760), (10, 2065284), (12, 1721070), (13, 1588680), (15, 1376856), (18, 1147380), (20, 1032642), (24, 860535), (26, 794340), (27, 764920), (30, 688428), (36, 573690), (39, 529560), (40, 516321), (45, 458952), (52, 397170), (54, 382460), (60, 344214), (65, 317736), (72, 286845), (78, 264780), (90, 229476), (104, 198585), (108, 191230), (117, 176520), (120, 172107), (130, 158868), (135, 152984), (156, 132390), (180, 114738), (195, 105912), (216, 95615), (234, 88260), (260, 79434), (270, 76492), (312, 66195), (351, 58840), (360, 57369), (390, 52956), (468, 44130), (520, 39717), (540, 38246), (585, 35304), (702, 29420), (780, 26478), (936, 22065), (1080, 19123), (1170, 17652), (1404, 14710), (1471, 14040), (1560, 13239), (1755, 11768), (2340, 8826), (2808, 7355), (2942, 7020), (3510, 5884), (4413, 4680)]