18504720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{659}}^1$

素因数の和:694

約数の個数: 160

約数和(自身を含む): 68745600

約数和(自身を除く): 50240880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 104, 108, 117, 120, 130, 135, 144, 156, 180, 195, 208, 216, 234, 240, 260, 270, 312, 351, 360, 390, 432, 468, 520, 540, 585, 624, 659, 702, 720, 780, 936, 1040, 1080, 1170, 1318, 1404, 1560, 1755, 1872, 1977, 2160, 2340, 2636, 2808, 3120, 3295, 3510, 3954, 4680, 5272, 5616, 5931, 6590, 7020, 7908, 8567, 9360, 9885, 10544, 11862, 13180, 14040, 15816, 17134, 17793, 19770, 23724, 25701, 26360, 28080, 29655, 31632, 34268, 35586, 39540, 42835, 47448, 51402, 52720, 59310, 68536, 71172, 77103, 79080, 85670, 88965, 94896, 102804, 118620, 128505, 137072, 142344, 154206, 158160, 171340, 177930, 205608, 231309, 237240, 257010, 284688, 308412, 342680, 355860, 385515, 411216, 462618, 474480, 514020, 616824, 685360, 711720, 771030, 925236, 1028040, 1156545, 1233648, 1423440, 1542060, 1850472, 2056080, 2313090, 3084120, 3700944, 4626180, 6168240, 9252360, 18504720]

約数ペア:

[(1, 18504720), (2, 9252360), (3, 6168240), (4, 4626180), (5, 3700944), (6, 3084120), (8, 2313090), (9, 2056080), (10, 1850472), (12, 1542060), (13, 1423440), (15, 1233648), (16, 1156545), (18, 1028040), (20, 925236), (24, 771030), (26, 711720), (27, 685360), (30, 616824), (36, 514020), (39, 474480), (40, 462618), (45, 411216), (48, 385515), (52, 355860), (54, 342680), (60, 308412), (65, 284688), (72, 257010), (78, 237240), (80, 231309), (90, 205608), (104, 177930), (108, 171340), (117, 158160), (120, 154206), (130, 142344), (135, 137072), (144, 128505), (156, 118620), (180, 102804), (195, 94896), (208, 88965), (216, 85670), (234, 79080), (240, 77103), (260, 71172), (270, 68536), (312, 59310), (351, 52720), (360, 51402), (390, 47448), (432, 42835), (468, 39540), (520, 35586), (540, 34268), (585, 31632), (624, 29655), (659, 28080), (702, 26360), (720, 25701), (780, 23724), (936, 19770), (1040, 17793), (1080, 17134), (1170, 15816), (1318, 14040), (1404, 13180), (1560, 11862), (1755, 10544), (1872, 9885), (1977, 9360), (2160, 8567), (2340, 7908), (2636, 7020), (2808, 6590), (3120, 5931), (3295, 5616), (3510, 5272), (3954, 4680)]