20011680

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1069}}^1$

素因数の和:1103

約数の個数: 144

約数和(自身を含む): 73611720

約数和(自身を除く): 53600040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1040, 1069, 1170, 1248, 1440, 1560, 1872, 2080, 2138, 2340, 3120, 3207, 3744, 4276, 4680, 5345, 6240, 6414, 8552, 9360, 9621, 10690, 12828, 13897, 16035, 17104, 18720, 19242, 21380, 25656, 27794, 32070, 34208, 38484, 41691, 42760, 48105, 51312, 55588, 64140, 69485, 76968, 83382, 85520, 96210, 102624, 111176, 125073, 128280, 138970, 153936, 166764, 171040, 192420, 208455, 222352, 250146, 256560, 277940, 307872, 333528, 384840, 416910, 444704, 500292, 513120, 555880, 625365, 667056, 769680, 833820, 1000584, 1111760, 1250730, 1334112, 1539360, 1667640, 2001168, 2223520, 2501460, 3335280, 4002336, 5002920, 6670560, 10005840, 20011680]

約数ペア:

[(1, 20011680), (2, 10005840), (3, 6670560), (4, 5002920), (5, 4002336), (6, 3335280), (8, 2501460), (9, 2223520), (10, 2001168), (12, 1667640), (13, 1539360), (15, 1334112), (16, 1250730), (18, 1111760), (20, 1000584), (24, 833820), (26, 769680), (30, 667056), (32, 625365), (36, 555880), (39, 513120), (40, 500292), (45, 444704), (48, 416910), (52, 384840), (60, 333528), (65, 307872), (72, 277940), (78, 256560), (80, 250146), (90, 222352), (96, 208455), (104, 192420), (117, 171040), (120, 166764), (130, 153936), (144, 138970), (156, 128280), (160, 125073), (180, 111176), (195, 102624), (208, 96210), (234, 85520), (240, 83382), (260, 76968), (288, 69485), (312, 64140), (360, 55588), (390, 51312), (416, 48105), (468, 42760), (480, 41691), (520, 38484), (585, 34208), (624, 32070), (720, 27794), (780, 25656), (936, 21380), (1040, 19242), (1069, 18720), (1170, 17104), (1248, 16035), (1440, 13897), (1560, 12828), (1872, 10690), (2080, 9621), (2138, 9360), (2340, 8552), (3120, 6414), (3207, 6240), (3744, 5345), (4276, 4680)]