28041390

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2663}}^1$

素因数の和:2695

約数の個数: 80

約数和(自身を含む): 81230688

約数和(自身を除く): 53189298

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 81, 90, 117, 130, 135, 162, 195, 234, 270, 351, 390, 405, 585, 702, 810, 1053, 1170, 1755, 2106, 2663, 3510, 5265, 5326, 7989, 10530, 13315, 15978, 23967, 26630, 34619, 39945, 47934, 69238, 71901, 79890, 103857, 119835, 143802, 173095, 207714, 215703, 239670, 311571, 346190, 359505, 431406, 519285, 623142, 719010, 934713, 1038570, 1078515, 1557855, 1869426, 2157030, 2804139, 3115710, 4673565, 5608278, 9347130, 14020695, 28041390]

約数ペア:

[(1, 28041390), (2, 14020695), (3, 9347130), (5, 5608278), (6, 4673565), (9, 3115710), (10, 2804139), (13, 2157030), (15, 1869426), (18, 1557855), (26, 1078515), (27, 1038570), (30, 934713), (39, 719010), (45, 623142), (54, 519285), (65, 431406), (78, 359505), (81, 346190), (90, 311571), (117, 239670), (130, 215703), (135, 207714), (162, 173095), (195, 143802), (234, 119835), (270, 103857), (351, 79890), (390, 71901), (405, 69238), (585, 47934), (702, 39945), (810, 34619), (1053, 26630), (1170, 23967), (1755, 15978), (2106, 13315), (2663, 10530), (3510, 7989), (5265, 5326)]