161874560

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:290

約数の個数: 128

約数和(自身を含む): 411264000

約数和(自身を除く): 249389440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 64, 80, 82, 124, 128, 155, 160, 164, 199, 205, 248, 310, 320, 328, 398, 410, 496, 620, 640, 656, 796, 820, 992, 995, 1240, 1271, 1312, 1592, 1640, 1984, 1990, 2480, 2542, 2624, 3184, 3280, 3968, 3980, 4960, 5084, 5248, 6169, 6355, 6368, 6560, 7960, 8159, 9920, 10168, 12338, 12710, 12736, 13120, 15920, 16318, 19840, 20336, 24676, 25420, 25472, 26240, 30845, 31840, 32636, 40672, 40795, 49352, 50840, 61690, 63680, 65272, 81344, 81590, 98704, 101680, 123380, 127360, 130544, 162688, 163180, 197408, 203360, 246760, 252929, 261088, 326360, 394816, 406720, 493520, 505858, 522176, 652720, 789632, 813440, 987040, 1011716, 1044352, 1264645, 1305440, 1974080, 2023432, 2529290, 2610880, 3948160, 4046864, 5058580, 5221760, 8093728, 10117160, 16187456, 20234320, 32374912, 40468640, 80937280, 161874560]

約数ペア:

[(1, 161874560), (2, 80937280), (4, 40468640), (5, 32374912), (8, 20234320), (10, 16187456), (16, 10117160), (20, 8093728), (31, 5221760), (32, 5058580), (40, 4046864), (41, 3948160), (62, 2610880), (64, 2529290), (80, 2023432), (82, 1974080), (124, 1305440), (128, 1264645), (155, 1044352), (160, 1011716), (164, 987040), (199, 813440), (205, 789632), (248, 652720), (310, 522176), (320, 505858), (328, 493520), (398, 406720), (410, 394816), (496, 326360), (620, 261088), (640, 252929), (656, 246760), (796, 203360), (820, 197408), (992, 163180), (995, 162688), (1240, 130544), (1271, 127360), (1312, 123380), (1592, 101680), (1640, 98704), (1984, 81590), (1990, 81344), (2480, 65272), (2542, 63680), (2624, 61690), (3184, 50840), (3280, 49352), (3968, 40795), (3980, 40672), (4960, 32636), (5084, 31840), (5248, 30845), (6169, 26240), (6355, 25472), (6368, 25420), (6560, 24676), (7960, 20336), (8159, 19840), (9920, 16318), (10168, 15920), (12338, 13120), (12710, 12736)]