789968000

素因数分解:

$2^7\times 5^3\times {\mathrm{97}}^1\times {\mathrm{509}}^1$

素因数の和:635

約数の個数: 128

約数和(自身を含む): 1988204400

約数和(自身を除く): 1198236400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 97, 100, 125, 128, 160, 194, 200, 250, 320, 388, 400, 485, 500, 509, 640, 776, 800, 970, 1000, 1018, 1552, 1600, 1940, 2000, 2036, 2425, 2545, 3104, 3200, 3880, 4000, 4072, 4850, 5090, 6208, 7760, 8000, 8144, 9700, 10180, 12125, 12416, 12725, 15520, 16000, 16288, 19400, 20360, 24250, 25450, 31040, 32576, 38800, 40720, 48500, 49373, 50900, 62080, 63625, 65152, 77600, 81440, 97000, 98746, 101800, 127250, 155200, 162880, 194000, 197492, 203600, 246865, 254500, 310400, 325760, 388000, 394984, 407200, 493730, 509000, 776000, 789968, 814400, 987460, 1018000, 1234325, 1552000, 1579936, 1628800, 1974920, 2036000, 2468650, 3159872, 3949840, 4072000, 4937300, 6171625, 6319744, 7899680, 8144000, 9874600, 12343250, 15799360, 19749200, 24686500, 31598720, 39498400, 49373000, 78996800, 98746000, 157993600, 197492000, 394984000, 789968000]

約数ペア:

[(1, 789968000), (2, 394984000), (4, 197492000), (5, 157993600), (8, 98746000), (10, 78996800), (16, 49373000), (20, 39498400), (25, 31598720), (32, 24686500), (40, 19749200), (50, 15799360), (64, 12343250), (80, 9874600), (97, 8144000), (100, 7899680), (125, 6319744), (128, 6171625), (160, 4937300), (194, 4072000), (200, 3949840), (250, 3159872), (320, 2468650), (388, 2036000), (400, 1974920), (485, 1628800), (500, 1579936), (509, 1552000), (640, 1234325), (776, 1018000), (800, 987460), (970, 814400), (1000, 789968), (1018, 776000), (1552, 509000), (1600, 493730), (1940, 407200), (2000, 394984), (2036, 388000), (2425, 325760), (2545, 310400), (3104, 254500), (3200, 246865), (3880, 203600), (4000, 197492), (4072, 194000), (4850, 162880), (5090, 155200), (6208, 127250), (7760, 101800), (8000, 98746), (8144, 97000), (9700, 81440), (10180, 77600), (12125, 65152), (12416, 63625), (12725, 62080), (15520, 50900), (16000, 49373), (16288, 48500), (19400, 40720), (20360, 38800), (24250, 32576), (25450, 31040)]