28415880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{317}}^1$

素因数の和:420

約数の個数: 128

約数和(自身を含む): 96163200

約数和(自身を除く): 67747320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 83, 90, 108, 120, 135, 166, 180, 216, 249, 270, 317, 332, 360, 415, 498, 540, 634, 664, 747, 830, 951, 996, 1080, 1245, 1268, 1494, 1585, 1660, 1902, 1992, 2241, 2490, 2536, 2853, 2988, 3170, 3320, 3735, 3804, 4482, 4755, 4980, 5706, 5976, 6340, 7470, 7608, 8559, 8964, 9510, 9960, 11205, 11412, 12680, 14265, 14940, 17118, 17928, 19020, 22410, 22824, 26311, 28530, 29880, 34236, 38040, 42795, 44820, 52622, 57060, 68472, 78933, 85590, 89640, 105244, 114120, 131555, 157866, 171180, 210488, 236799, 263110, 315732, 342360, 394665, 473598, 526220, 631464, 710397, 789330, 947196, 1052440, 1183995, 1420794, 1578660, 1894392, 2367990, 2841588, 3157320, 3551985, 4735980, 5683176, 7103970, 9471960, 14207940, 28415880]

約数ペア:

[(1, 28415880), (2, 14207940), (3, 9471960), (4, 7103970), (5, 5683176), (6, 4735980), (8, 3551985), (9, 3157320), (10, 2841588), (12, 2367990), (15, 1894392), (18, 1578660), (20, 1420794), (24, 1183995), (27, 1052440), (30, 947196), (36, 789330), (40, 710397), (45, 631464), (54, 526220), (60, 473598), (72, 394665), (83, 342360), (90, 315732), (108, 263110), (120, 236799), (135, 210488), (166, 171180), (180, 157866), (216, 131555), (249, 114120), (270, 105244), (317, 89640), (332, 85590), (360, 78933), (415, 68472), (498, 57060), (540, 52622), (634, 44820), (664, 42795), (747, 38040), (830, 34236), (951, 29880), (996, 28530), (1080, 26311), (1245, 22824), (1268, 22410), (1494, 19020), (1585, 17928), (1660, 17118), (1902, 14940), (1992, 14265), (2241, 12680), (2490, 11412), (2536, 11205), (2853, 9960), (2988, 9510), (3170, 8964), (3320, 8559), (3735, 7608), (3804, 7470), (4482, 6340), (4755, 5976), (4980, 5706)]