81178740

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:311

約数の個数: 192

約数和(自身を含む): 275788800

約数和(自身を除く): 194610060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 37, 45, 51, 54, 60, 68, 74, 85, 90, 102, 108, 111, 135, 148, 153, 170, 180, 185, 204, 222, 239, 255, 270, 306, 333, 340, 370, 444, 459, 478, 510, 540, 555, 612, 629, 666, 717, 740, 765, 918, 956, 999, 1020, 1110, 1195, 1258, 1332, 1434, 1530, 1665, 1836, 1887, 1998, 2151, 2220, 2295, 2390, 2516, 2868, 3060, 3145, 3330, 3585, 3774, 3996, 4063, 4302, 4590, 4780, 4995, 5661, 6290, 6453, 6660, 7170, 7548, 8126, 8604, 8843, 9180, 9435, 9990, 10755, 11322, 12189, 12580, 12906, 14340, 16252, 16983, 17686, 18870, 19980, 20315, 21510, 22644, 24378, 25812, 26529, 28305, 32265, 33966, 35372, 36567, 37740, 40630, 43020, 44215, 48756, 53058, 56610, 60945, 64530, 67932, 73134, 79587, 81260, 84915, 88430, 106116, 109701, 113220, 121890, 129060, 132645, 146268, 150331, 159174, 169830, 176860, 182835, 219402, 238761, 243780, 265290, 300662, 318348, 339660, 365670, 397935, 438804, 450993, 477522, 530580, 548505, 601324, 731340, 751655, 795870, 901986, 955044, 1097010, 1193805, 1352979, 1503310, 1591740, 1803972, 2194020, 2254965, 2387610, 2705958, 3006620, 4058937, 4509930, 4775220, 5411916, 6764895, 8117874, 9019860, 13529790, 16235748, 20294685, 27059580, 40589370, 81178740]

約数ペア:

[(1, 81178740), (2, 40589370), (3, 27059580), (4, 20294685), (5, 16235748), (6, 13529790), (9, 9019860), (10, 8117874), (12, 6764895), (15, 5411916), (17, 4775220), (18, 4509930), (20, 4058937), (27, 3006620), (30, 2705958), (34, 2387610), (36, 2254965), (37, 2194020), (45, 1803972), (51, 1591740), (54, 1503310), (60, 1352979), (68, 1193805), (74, 1097010), (85, 955044), (90, 901986), (102, 795870), (108, 751655), (111, 731340), (135, 601324), (148, 548505), (153, 530580), (170, 477522), (180, 450993), (185, 438804), (204, 397935), (222, 365670), (239, 339660), (255, 318348), (270, 300662), (306, 265290), (333, 243780), (340, 238761), (370, 219402), (444, 182835), (459, 176860), (478, 169830), (510, 159174), (540, 150331), (555, 146268), (612, 132645), (629, 129060), (666, 121890), (717, 113220), (740, 109701), (765, 106116), (918, 88430), (956, 84915), (999, 81260), (1020, 79587), (1110, 73134), (1195, 67932), (1258, 64530), (1332, 60945), (1434, 56610), (1530, 53058), (1665, 48756), (1836, 44215), (1887, 43020), (1998, 40630), (2151, 37740), (2220, 36567), (2295, 35372), (2390, 33966), (2516, 32265), (2868, 28305), (3060, 26529), (3145, 25812), (3330, 24378), (3585, 22644), (3774, 21510), (3996, 20315), (4063, 19980), (4302, 18870), (4590, 17686), (4780, 16983), (4995, 16252), (5661, 14340), (6290, 12906), (6453, 12580), (6660, 12189), (7170, 11322), (7548, 10755), (8126, 9990), (8604, 9435), (8843, 9180)]