28725920

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1$

素因数の和:270

約数の個数: 96

約数和(自身を含む): 73483200

約数和(自身を除く): 44757280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 59, 68, 80, 85, 118, 136, 160, 170, 179, 236, 272, 295, 340, 358, 472, 544, 590, 680, 716, 895, 944, 1003, 1180, 1360, 1432, 1790, 1888, 2006, 2360, 2720, 2864, 3043, 3580, 4012, 4720, 5015, 5728, 6086, 7160, 8024, 9440, 10030, 10561, 12172, 14320, 15215, 16048, 20060, 21122, 24344, 28640, 30430, 32096, 40120, 42244, 48688, 52805, 60860, 80240, 84488, 97376, 105610, 121720, 160480, 168976, 179537, 211220, 243440, 337952, 359074, 422440, 486880, 718148, 844880, 897685, 1436296, 1689760, 1795370, 2872592, 3590740, 5745184, 7181480, 14362960, 28725920]

約数ペア:

[(1, 28725920), (2, 14362960), (4, 7181480), (5, 5745184), (8, 3590740), (10, 2872592), (16, 1795370), (17, 1689760), (20, 1436296), (32, 897685), (34, 844880), (40, 718148), (59, 486880), (68, 422440), (80, 359074), (85, 337952), (118, 243440), (136, 211220), (160, 179537), (170, 168976), (179, 160480), (236, 121720), (272, 105610), (295, 97376), (340, 84488), (358, 80240), (472, 60860), (544, 52805), (590, 48688), (680, 42244), (716, 40120), (895, 32096), (944, 30430), (1003, 28640), (1180, 24344), (1360, 21122), (1432, 20060), (1790, 16048), (1888, 15215), (2006, 14320), (2360, 12172), (2720, 10561), (2864, 10030), (3043, 9440), (3580, 8024), (4012, 7160), (4720, 6086), (5015, 5728)]