28848120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{563}}^1$

素因数の和:645

約数の個数: 128

約数和(自身を含む): 100707840

約数和(自身を除く): 71859720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 61, 70, 84, 105, 120, 122, 140, 168, 183, 210, 244, 280, 305, 366, 420, 427, 488, 563, 610, 732, 840, 854, 915, 1126, 1220, 1281, 1464, 1689, 1708, 1830, 2135, 2252, 2440, 2562, 2815, 3378, 3416, 3660, 3941, 4270, 4504, 5124, 5630, 6405, 6756, 7320, 7882, 8445, 8540, 10248, 11260, 11823, 12810, 13512, 15764, 16890, 17080, 19705, 22520, 23646, 25620, 31528, 33780, 34343, 39410, 47292, 51240, 59115, 67560, 68686, 78820, 94584, 103029, 118230, 137372, 157640, 171715, 206058, 236460, 240401, 274744, 343430, 412116, 472920, 480802, 515145, 686860, 721203, 824232, 961604, 1030290, 1202005, 1373720, 1442406, 1923208, 2060580, 2404010, 2884812, 3606015, 4121160, 4808020, 5769624, 7212030, 9616040, 14424060, 28848120]

約数ペア:

[(1, 28848120), (2, 14424060), (3, 9616040), (4, 7212030), (5, 5769624), (6, 4808020), (7, 4121160), (8, 3606015), (10, 2884812), (12, 2404010), (14, 2060580), (15, 1923208), (20, 1442406), (21, 1373720), (24, 1202005), (28, 1030290), (30, 961604), (35, 824232), (40, 721203), (42, 686860), (56, 515145), (60, 480802), (61, 472920), (70, 412116), (84, 343430), (105, 274744), (120, 240401), (122, 236460), (140, 206058), (168, 171715), (183, 157640), (210, 137372), (244, 118230), (280, 103029), (305, 94584), (366, 78820), (420, 68686), (427, 67560), (488, 59115), (563, 51240), (610, 47292), (732, 39410), (840, 34343), (854, 33780), (915, 31528), (1126, 25620), (1220, 23646), (1281, 22520), (1464, 19705), (1689, 17080), (1708, 16890), (1830, 15764), (2135, 13512), (2252, 12810), (2440, 11823), (2562, 11260), (2815, 10248), (3378, 8540), (3416, 8445), (3660, 7882), (3941, 7320), (4270, 6756), (4504, 6405), (5124, 5630)]