8428420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1$

素因数の和:461

約数の個数: 96

約数和(自身を含む): 23821056

約数和(自身を除く): 15392636

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 182, 220, 260, 286, 308, 364, 385, 421, 455, 572, 715, 770, 842, 910, 1001, 1430, 1540, 1684, 1820, 2002, 2105, 2860, 2947, 4004, 4210, 4631, 5005, 5473, 5894, 8420, 9262, 10010, 10946, 11788, 14735, 18524, 20020, 21892, 23155, 27365, 29470, 32417, 38311, 46310, 54730, 58940, 60203, 64834, 76622, 92620, 109460, 120406, 129668, 153244, 162085, 191555, 240812, 301015, 324170, 383110, 421421, 602030, 648340, 766220, 842842, 1204060, 1685684, 2107105, 4214210, 8428420]

約数ペア:

[(1, 8428420), (2, 4214210), (4, 2107105), (5, 1685684), (7, 1204060), (10, 842842), (11, 766220), (13, 648340), (14, 602030), (20, 421421), (22, 383110), (26, 324170), (28, 301015), (35, 240812), (44, 191555), (52, 162085), (55, 153244), (65, 129668), (70, 120406), (77, 109460), (91, 92620), (110, 76622), (130, 64834), (140, 60203), (143, 58940), (154, 54730), (182, 46310), (220, 38311), (260, 32417), (286, 29470), (308, 27365), (364, 23155), (385, 21892), (421, 20020), (455, 18524), (572, 14735), (715, 11788), (770, 10946), (842, 10010), (910, 9262), (1001, 8420), (1430, 5894), (1540, 5473), (1684, 5005), (1820, 4631), (2002, 4210), (2105, 4004), (2860, 2947)]