72531720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{281}}^1$

素因数の和:540

約数の個数: 128

約数和(自身を含む): 243648000

約数和(自身を除く): 171116280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 239, 270, 281, 360, 478, 540, 562, 717, 843, 956, 1080, 1124, 1195, 1405, 1434, 1686, 1912, 2151, 2248, 2390, 2529, 2810, 2868, 3372, 3585, 4215, 4302, 4780, 5058, 5620, 5736, 6453, 6744, 7170, 7587, 8430, 8604, 9560, 10116, 10755, 11240, 12645, 12906, 14340, 15174, 16860, 17208, 20232, 21510, 25290, 25812, 28680, 30348, 32265, 33720, 37935, 43020, 50580, 51624, 60696, 64530, 67159, 75870, 86040, 101160, 129060, 134318, 151740, 201477, 258120, 268636, 303480, 335795, 402954, 537272, 604431, 671590, 805908, 1007385, 1208862, 1343180, 1611816, 1813293, 2014770, 2417724, 2686360, 3022155, 3626586, 4029540, 4835448, 6044310, 7253172, 8059080, 9066465, 12088620, 14506344, 18132930, 24177240, 36265860, 72531720]

約数ペア:

[(1, 72531720), (2, 36265860), (3, 24177240), (4, 18132930), (5, 14506344), (6, 12088620), (8, 9066465), (9, 8059080), (10, 7253172), (12, 6044310), (15, 4835448), (18, 4029540), (20, 3626586), (24, 3022155), (27, 2686360), (30, 2417724), (36, 2014770), (40, 1813293), (45, 1611816), (54, 1343180), (60, 1208862), (72, 1007385), (90, 805908), (108, 671590), (120, 604431), (135, 537272), (180, 402954), (216, 335795), (239, 303480), (270, 268636), (281, 258120), (360, 201477), (478, 151740), (540, 134318), (562, 129060), (717, 101160), (843, 86040), (956, 75870), (1080, 67159), (1124, 64530), (1195, 60696), (1405, 51624), (1434, 50580), (1686, 43020), (1912, 37935), (2151, 33720), (2248, 32265), (2390, 30348), (2529, 28680), (2810, 25812), (2868, 25290), (3372, 21510), (3585, 20232), (4215, 17208), (4302, 16860), (4780, 15174), (5058, 14340), (5620, 12906), (5736, 12645), (6453, 11240), (6744, 10755), (7170, 10116), (7587, 9560), (8430, 8604)]