81464580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4481}}^1$

素因数の和:4597

約数の個数: 72

約数和(自身を含む): 249611544

約数和(自身を除く): 168146964

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 1010, 1212, 1515, 1818, 2020, 3030, 3636, 4481, 4545, 6060, 8962, 9090, 13443, 17924, 18180, 22405, 26886, 40329, 44810, 53772, 67215, 80658, 89620, 134430, 161316, 201645, 268860, 403290, 452581, 806580, 905162, 1357743, 1810324, 2262905, 2715486, 4073229, 4525810, 5430972, 6788715, 8146458, 9051620, 13577430, 16292916, 20366145, 27154860, 40732290, 81464580]

約数ペア:

[(1, 81464580), (2, 40732290), (3, 27154860), (4, 20366145), (5, 16292916), (6, 13577430), (9, 9051620), (10, 8146458), (12, 6788715), (15, 5430972), (18, 4525810), (20, 4073229), (30, 2715486), (36, 2262905), (45, 1810324), (60, 1357743), (90, 905162), (101, 806580), (180, 452581), (202, 403290), (303, 268860), (404, 201645), (505, 161316), (606, 134430), (909, 89620), (1010, 80658), (1212, 67215), (1515, 53772), (1818, 44810), (2020, 40329), (3030, 26886), (3636, 22405), (4481, 18180), (4545, 17924), (6060, 13443), (8962, 9090)]