20401836

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1$

素因数の和:208

約数の個数: 144

約数和(自身を含む): 63546336

約数和(自身を除く): 43144500

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 17, 21, 26, 28, 34, 39, 42, 49, 51, 52, 68, 78, 84, 91, 98, 102, 119, 147, 156, 157, 182, 196, 204, 221, 238, 273, 294, 314, 357, 364, 442, 471, 476, 546, 588, 628, 637, 663, 714, 833, 884, 942, 1092, 1099, 1274, 1326, 1428, 1547, 1666, 1884, 1911, 2041, 2198, 2499, 2548, 2652, 2669, 3094, 3297, 3332, 3822, 4082, 4396, 4641, 4998, 5338, 6123, 6188, 6594, 7644, 7693, 8007, 8164, 9282, 9996, 10676, 10829, 12246, 13188, 14287, 15386, 16014, 18564, 18683, 21658, 23079, 24492, 28574, 30772, 32028, 32487, 34697, 37366, 42861, 43316, 46158, 56049, 57148, 64974, 69394, 74732, 85722, 92316, 100009, 104091, 112098, 129948, 130781, 138788, 171444, 200018, 208182, 224196, 242879, 261562, 300027, 392343, 400036, 416364, 485758, 523124, 600054, 728637, 784686, 971516, 1200108, 1457274, 1569372, 1700153, 2914548, 3400306, 5100459, 6800612, 10200918, 20401836]

約数ペア:

[(1, 20401836), (2, 10200918), (3, 6800612), (4, 5100459), (6, 3400306), (7, 2914548), (12, 1700153), (13, 1569372), (14, 1457274), (17, 1200108), (21, 971516), (26, 784686), (28, 728637), (34, 600054), (39, 523124), (42, 485758), (49, 416364), (51, 400036), (52, 392343), (68, 300027), (78, 261562), (84, 242879), (91, 224196), (98, 208182), (102, 200018), (119, 171444), (147, 138788), (156, 130781), (157, 129948), (182, 112098), (196, 104091), (204, 100009), (221, 92316), (238, 85722), (273, 74732), (294, 69394), (314, 64974), (357, 57148), (364, 56049), (442, 46158), (471, 43316), (476, 42861), (546, 37366), (588, 34697), (628, 32487), (637, 32028), (663, 30772), (714, 28574), (833, 24492), (884, 23079), (942, 21658), (1092, 18683), (1099, 18564), (1274, 16014), (1326, 15386), (1428, 14287), (1547, 13188), (1666, 12246), (1884, 10829), (1911, 10676), (2041, 9996), (2198, 9282), (2499, 8164), (2548, 8007), (2652, 7693), (2669, 7644), (3094, 6594), (3297, 6188), (3332, 6123), (3822, 5338), (4082, 4998), (4396, 4641)]