28556800

素因数分解:

$2^9\times 5^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1$

素因数の和:148

約数の個数: 120

約数和(自身を含む): 74588976

約数和(自身を除く): 46032176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 64, 80, 92, 97, 100, 115, 128, 160, 184, 194, 200, 230, 256, 320, 368, 388, 400, 460, 485, 512, 575, 640, 736, 776, 800, 920, 970, 1150, 1280, 1472, 1552, 1600, 1840, 1940, 2231, 2300, 2425, 2560, 2944, 3104, 3200, 3680, 3880, 4462, 4600, 4850, 5888, 6208, 6400, 7360, 7760, 8924, 9200, 9700, 11155, 11776, 12416, 12800, 14720, 15520, 17848, 18400, 19400, 22310, 24832, 29440, 31040, 35696, 36800, 38800, 44620, 49664, 55775, 58880, 62080, 71392, 73600, 77600, 89240, 111550, 124160, 142784, 147200, 155200, 178480, 223100, 248320, 285568, 294400, 310400, 356960, 446200, 571136, 620800, 713920, 892400, 1142272, 1241600, 1427840, 1784800, 2855680, 3569600, 5711360, 7139200, 14278400, 28556800]

約数ペア:

[(1, 28556800), (2, 14278400), (4, 7139200), (5, 5711360), (8, 3569600), (10, 2855680), (16, 1784800), (20, 1427840), (23, 1241600), (25, 1142272), (32, 892400), (40, 713920), (46, 620800), (50, 571136), (64, 446200), (80, 356960), (92, 310400), (97, 294400), (100, 285568), (115, 248320), (128, 223100), (160, 178480), (184, 155200), (194, 147200), (200, 142784), (230, 124160), (256, 111550), (320, 89240), (368, 77600), (388, 73600), (400, 71392), (460, 62080), (485, 58880), (512, 55775), (575, 49664), (640, 44620), (736, 38800), (776, 36800), (800, 35696), (920, 31040), (970, 29440), (1150, 24832), (1280, 22310), (1472, 19400), (1552, 18400), (1600, 17848), (1840, 15520), (1940, 14720), (2231, 12800), (2300, 12416), (2425, 11776), (2560, 11155), (2944, 9700), (3104, 9200), (3200, 8924), (3680, 7760), (3880, 7360), (4462, 6400), (4600, 6208), (4850, 5888)]