81397920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:215

約数の個数: 192

約数和(自身を含む): 273901824

約数和(自身を除く): 192503904

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 69, 73, 80, 92, 96, 101, 115, 120, 138, 146, 160, 184, 202, 219, 230, 240, 276, 292, 303, 345, 365, 368, 404, 438, 460, 480, 505, 552, 584, 606, 690, 730, 736, 808, 876, 920, 1010, 1095, 1104, 1168, 1212, 1380, 1460, 1515, 1616, 1679, 1752, 1840, 2020, 2190, 2208, 2323, 2336, 2424, 2760, 2920, 3030, 3232, 3358, 3504, 3680, 4040, 4380, 4646, 4848, 5037, 5520, 5840, 6060, 6716, 6969, 7008, 7373, 8080, 8395, 8760, 9292, 9696, 10074, 11040, 11615, 11680, 12120, 13432, 13938, 14746, 16160, 16790, 17520, 18584, 20148, 22119, 23230, 24240, 25185, 26864, 27876, 29492, 33580, 34845, 35040, 36865, 37168, 40296, 44238, 46460, 48480, 50370, 53728, 55752, 58984, 67160, 69690, 73730, 74336, 80592, 88476, 92920, 100740, 110595, 111504, 117968, 134320, 139380, 147460, 161184, 169579, 176952, 185840, 201480, 221190, 223008, 235936, 268640, 278760, 294920, 339158, 353904, 371680, 402960, 442380, 508737, 557520, 589840, 678316, 707808, 805920, 847895, 884760, 1017474, 1115040, 1179680, 1356632, 1695790, 1769520, 2034948, 2543685, 2713264, 3391580, 3539040, 4069896, 5087370, 5426528, 6783160, 8139792, 10174740, 13566320, 16279584, 20349480, 27132640, 40698960, 81397920]

約数ペア:

[(1, 81397920), (2, 40698960), (3, 27132640), (4, 20349480), (5, 16279584), (6, 13566320), (8, 10174740), (10, 8139792), (12, 6783160), (15, 5426528), (16, 5087370), (20, 4069896), (23, 3539040), (24, 3391580), (30, 2713264), (32, 2543685), (40, 2034948), (46, 1769520), (48, 1695790), (60, 1356632), (69, 1179680), (73, 1115040), (80, 1017474), (92, 884760), (96, 847895), (101, 805920), (115, 707808), (120, 678316), (138, 589840), (146, 557520), (160, 508737), (184, 442380), (202, 402960), (219, 371680), (230, 353904), (240, 339158), (276, 294920), (292, 278760), (303, 268640), (345, 235936), (365, 223008), (368, 221190), (404, 201480), (438, 185840), (460, 176952), (480, 169579), (505, 161184), (552, 147460), (584, 139380), (606, 134320), (690, 117968), (730, 111504), (736, 110595), (808, 100740), (876, 92920), (920, 88476), (1010, 80592), (1095, 74336), (1104, 73730), (1168, 69690), (1212, 67160), (1380, 58984), (1460, 55752), (1515, 53728), (1616, 50370), (1679, 48480), (1752, 46460), (1840, 44238), (2020, 40296), (2190, 37168), (2208, 36865), (2323, 35040), (2336, 34845), (2424, 33580), (2760, 29492), (2920, 27876), (3030, 26864), (3232, 25185), (3358, 24240), (3504, 23230), (3680, 22119), (4040, 20148), (4380, 18584), (4646, 17520), (4848, 16790), (5037, 16160), (5520, 14746), (5840, 13938), (6060, 13432), (6716, 12120), (6969, 11680), (7008, 11615), (7373, 11040), (8080, 10074), (8395, 9696), (8760, 9292)]