221380920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{239}}^1$

素因数の和:370

約数の個数: 192

約数和(自身を含む): 754790400

約数和(自身を除く): 533409480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 83, 90, 93, 120, 124, 155, 166, 180, 186, 239, 248, 249, 279, 310, 332, 360, 372, 415, 465, 478, 498, 558, 620, 664, 717, 744, 747, 830, 930, 956, 996, 1116, 1195, 1240, 1245, 1395, 1434, 1494, 1660, 1860, 1912, 1992, 2151, 2232, 2390, 2490, 2573, 2790, 2868, 2988, 3320, 3585, 3720, 3735, 4302, 4780, 4980, 5146, 5580, 5736, 5976, 7170, 7409, 7470, 7719, 8604, 9560, 9960, 10292, 10755, 11160, 12865, 14340, 14818, 14940, 15438, 17208, 19837, 20584, 21510, 22227, 23157, 25730, 28680, 29636, 29880, 30876, 37045, 38595, 39674, 43020, 44454, 46314, 51460, 59272, 59511, 61752, 66681, 74090, 77190, 79348, 86040, 88908, 92628, 99185, 102920, 111135, 115785, 119022, 133362, 148180, 154380, 158696, 177816, 178533, 185256, 198370, 222270, 231570, 238044, 266724, 296360, 297555, 308760, 333405, 357066, 396740, 444540, 463140, 476088, 533448, 595110, 614947, 666810, 714132, 793480, 889080, 892665, 926280, 1190220, 1229894, 1333620, 1428264, 1785330, 1844841, 2380440, 2459788, 2667240, 3074735, 3570660, 3689682, 4919576, 5534523, 6149470, 7141320, 7379364, 9224205, 11069046, 12298940, 14758728, 18448410, 22138092, 24597880, 27672615, 36896820, 44276184, 55345230, 73793640, 110690460, 221380920]

約数ペア:

[(1, 221380920), (2, 110690460), (3, 73793640), (4, 55345230), (5, 44276184), (6, 36896820), (8, 27672615), (9, 24597880), (10, 22138092), (12, 18448410), (15, 14758728), (18, 12298940), (20, 11069046), (24, 9224205), (30, 7379364), (31, 7141320), (36, 6149470), (40, 5534523), (45, 4919576), (60, 3689682), (62, 3570660), (72, 3074735), (83, 2667240), (90, 2459788), (93, 2380440), (120, 1844841), (124, 1785330), (155, 1428264), (166, 1333620), (180, 1229894), (186, 1190220), (239, 926280), (248, 892665), (249, 889080), (279, 793480), (310, 714132), (332, 666810), (360, 614947), (372, 595110), (415, 533448), (465, 476088), (478, 463140), (498, 444540), (558, 396740), (620, 357066), (664, 333405), (717, 308760), (744, 297555), (747, 296360), (830, 266724), (930, 238044), (956, 231570), (996, 222270), (1116, 198370), (1195, 185256), (1240, 178533), (1245, 177816), (1395, 158696), (1434, 154380), (1494, 148180), (1660, 133362), (1860, 119022), (1912, 115785), (1992, 111135), (2151, 102920), (2232, 99185), (2390, 92628), (2490, 88908), (2573, 86040), (2790, 79348), (2868, 77190), (2988, 74090), (3320, 66681), (3585, 61752), (3720, 59511), (3735, 59272), (4302, 51460), (4780, 46314), (4980, 44454), (5146, 43020), (5580, 39674), (5736, 38595), (5976, 37045), (7170, 30876), (7409, 29880), (7470, 29636), (7719, 28680), (8604, 25730), (9560, 23157), (9960, 22227), (10292, 21510), (10755, 20584), (11160, 19837), (12865, 17208), (14340, 15438), (14818, 14940)]