16918020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{463}}^1$

素因数の和:514

約数の個数: 144

約数和(自身を含む): 60802560

約数和(自身を除く): 43884540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 29, 30, 35, 36, 42, 45, 58, 60, 63, 70, 84, 87, 90, 105, 116, 126, 140, 145, 174, 180, 203, 210, 252, 261, 290, 315, 348, 406, 420, 435, 463, 522, 580, 609, 630, 812, 870, 926, 1015, 1044, 1218, 1260, 1305, 1389, 1740, 1827, 1852, 2030, 2315, 2436, 2610, 2778, 3045, 3241, 3654, 4060, 4167, 4630, 5220, 5556, 6090, 6482, 6945, 7308, 8334, 9135, 9260, 9723, 12180, 12964, 13427, 13890, 16205, 16668, 18270, 19446, 20835, 26854, 27780, 29169, 32410, 36540, 38892, 40281, 41670, 48615, 53708, 58338, 64820, 67135, 80562, 83340, 93989, 97230, 116676, 120843, 134270, 145845, 161124, 187978, 194460, 201405, 241686, 268540, 281967, 291690, 375956, 402810, 469945, 483372, 563934, 583380, 604215, 805620, 845901, 939890, 1127868, 1208430, 1409835, 1691802, 1879780, 2416860, 2819670, 3383604, 4229505, 5639340, 8459010, 16918020]

約数ペア:

[(1, 16918020), (2, 8459010), (3, 5639340), (4, 4229505), (5, 3383604), (6, 2819670), (7, 2416860), (9, 1879780), (10, 1691802), (12, 1409835), (14, 1208430), (15, 1127868), (18, 939890), (20, 845901), (21, 805620), (28, 604215), (29, 583380), (30, 563934), (35, 483372), (36, 469945), (42, 402810), (45, 375956), (58, 291690), (60, 281967), (63, 268540), (70, 241686), (84, 201405), (87, 194460), (90, 187978), (105, 161124), (116, 145845), (126, 134270), (140, 120843), (145, 116676), (174, 97230), (180, 93989), (203, 83340), (210, 80562), (252, 67135), (261, 64820), (290, 58338), (315, 53708), (348, 48615), (406, 41670), (420, 40281), (435, 38892), (463, 36540), (522, 32410), (580, 29169), (609, 27780), (630, 26854), (812, 20835), (870, 19446), (926, 18270), (1015, 16668), (1044, 16205), (1218, 13890), (1260, 13427), (1305, 12964), (1389, 12180), (1740, 9723), (1827, 9260), (1852, 9135), (2030, 8334), (2315, 7308), (2436, 6945), (2610, 6482), (2778, 6090), (3045, 5556), (3241, 5220), (3654, 4630), (4060, 4167)]