21528800

素因数分解:

$2^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{1583}}^1$

素因数の和:1620

約数の個数: 72

約数和(自身を含む): 55683936

約数和(自身を除く): 34155136

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 68, 80, 85, 100, 136, 160, 170, 200, 272, 340, 400, 425, 544, 680, 800, 850, 1360, 1583, 1700, 2720, 3166, 3400, 6332, 6800, 7915, 12664, 13600, 15830, 25328, 26911, 31660, 39575, 50656, 53822, 63320, 79150, 107644, 126640, 134555, 158300, 215288, 253280, 269110, 316600, 430576, 538220, 633200, 672775, 861152, 1076440, 1266400, 1345550, 2152880, 2691100, 4305760, 5382200, 10764400, 21528800]

約数ペア:

[(1, 21528800), (2, 10764400), (4, 5382200), (5, 4305760), (8, 2691100), (10, 2152880), (16, 1345550), (17, 1266400), (20, 1076440), (25, 861152), (32, 672775), (34, 633200), (40, 538220), (50, 430576), (68, 316600), (80, 269110), (85, 253280), (100, 215288), (136, 158300), (160, 134555), (170, 126640), (200, 107644), (272, 79150), (340, 63320), (400, 53822), (425, 50656), (544, 39575), (680, 31660), (800, 26911), (850, 25328), (1360, 15830), (1583, 13600), (1700, 12664), (2720, 7915), (3166, 6800), (3400, 6332)]