641520

素因数分解:

$2^4\times 3^6\times 5^1\times {\mathrm{11}}^1$

素因数の和:42

約数の個数: 140

約数和(自身を含む): 2439576

約数和(自身を除く): 1798056

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 81, 88, 90, 99, 108, 110, 120, 132, 135, 144, 162, 165, 176, 180, 198, 216, 220, 240, 243, 264, 270, 297, 324, 330, 360, 396, 405, 432, 440, 486, 495, 528, 540, 594, 648, 660, 720, 729, 792, 810, 880, 891, 972, 990, 1080, 1188, 1215, 1296, 1320, 1458, 1485, 1584, 1620, 1782, 1944, 1980, 2160, 2376, 2430, 2640, 2673, 2916, 2970, 3240, 3564, 3645, 3888, 3960, 4455, 4752, 4860, 5346, 5832, 5940, 6480, 7128, 7290, 7920, 8019, 8910, 9720, 10692, 11664, 11880, 13365, 14256, 14580, 16038, 17820, 19440, 21384, 23760, 26730, 29160, 32076, 35640, 40095, 42768, 53460, 58320, 64152, 71280, 80190, 106920, 128304, 160380, 213840, 320760, 641520]

約数ペア:

[(1, 641520), (2, 320760), (3, 213840), (4, 160380), (5, 128304), (6, 106920), (8, 80190), (9, 71280), (10, 64152), (11, 58320), (12, 53460), (15, 42768), (16, 40095), (18, 35640), (20, 32076), (22, 29160), (24, 26730), (27, 23760), (30, 21384), (33, 19440), (36, 17820), (40, 16038), (44, 14580), (45, 14256), (48, 13365), (54, 11880), (55, 11664), (60, 10692), (66, 9720), (72, 8910), (80, 8019), (81, 7920), (88, 7290), (90, 7128), (99, 6480), (108, 5940), (110, 5832), (120, 5346), (132, 4860), (135, 4752), (144, 4455), (162, 3960), (165, 3888), (176, 3645), (180, 3564), (198, 3240), (216, 2970), (220, 2916), (240, 2673), (243, 2640), (264, 2430), (270, 2376), (297, 2160), (324, 1980), (330, 1944), (360, 1782), (396, 1620), (405, 1584), (432, 1485), (440, 1458), (486, 1320), (495, 1296), (528, 1215), (540, 1188), (594, 1080), (648, 990), (660, 972), (720, 891), (729, 880), (792, 810)]