81057360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19867}}^1$

素因数の和:19900

約数の個数: 80

約数和(自身を含む): 266072256

約数和(自身を除く): 185014896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 19867, 39734, 59601, 79468, 99335, 119202, 158936, 198670, 238404, 298005, 317872, 337739, 397340, 476808, 596010, 675478, 794680, 953616, 1013217, 1192020, 1350956, 1589360, 1688695, 2026434, 2384040, 2701912, 3377390, 4052868, 4768080, 5066085, 5403824, 6754780, 8105736, 10132170, 13509560, 16211472, 20264340, 27019120, 40528680, 81057360]

約数ペア:

[(1, 81057360), (2, 40528680), (3, 27019120), (4, 20264340), (5, 16211472), (6, 13509560), (8, 10132170), (10, 8105736), (12, 6754780), (15, 5403824), (16, 5066085), (17, 4768080), (20, 4052868), (24, 3377390), (30, 2701912), (34, 2384040), (40, 2026434), (48, 1688695), (51, 1589360), (60, 1350956), (68, 1192020), (80, 1013217), (85, 953616), (102, 794680), (120, 675478), (136, 596010), (170, 476808), (204, 397340), (240, 337739), (255, 317872), (272, 298005), (340, 238404), (408, 198670), (510, 158936), (680, 119202), (816, 99335), (1020, 79468), (1360, 59601), (2040, 39734), (4080, 19867)]