28019670

素因数分解:

$2^1\times 3^1\times 5^1\times 7^4\times {\mathrm{389}}^1$

素因数の和:427

約数の個数: 80

約数和(自身を含む): 78652080

約数和(自身を除く): 50632410

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 343, 389, 490, 686, 735, 778, 1029, 1167, 1470, 1715, 1945, 2058, 2334, 2401, 2723, 3430, 3890, 4802, 5145, 5446, 5835, 7203, 8169, 10290, 11670, 12005, 13615, 14406, 16338, 19061, 24010, 27230, 36015, 38122, 40845, 57183, 72030, 81690, 95305, 114366, 133427, 190610, 266854, 285915, 400281, 571830, 667135, 800562, 933989, 1334270, 1867978, 2001405, 2801967, 4002810, 4669945, 5603934, 9339890, 14009835, 28019670]

約数ペア:

[(1, 28019670), (2, 14009835), (3, 9339890), (5, 5603934), (6, 4669945), (7, 4002810), (10, 2801967), (14, 2001405), (15, 1867978), (21, 1334270), (30, 933989), (35, 800562), (42, 667135), (49, 571830), (70, 400281), (98, 285915), (105, 266854), (147, 190610), (210, 133427), (245, 114366), (294, 95305), (343, 81690), (389, 72030), (490, 57183), (686, 40845), (735, 38122), (778, 36015), (1029, 27230), (1167, 24010), (1470, 19061), (1715, 16338), (1945, 14406), (2058, 13615), (2334, 12005), (2401, 11670), (2723, 10290), (3430, 8169), (3890, 7203), (4802, 5835), (5145, 5446)]