80937280

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:288

約数の個数: 112

約数和(自身を含む): 204825600

約数和(自身を除く): 123888320

約数列:

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

約数ペア:

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