640003896

素因数分解:

$2^3\times 3^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{3557}}^1$

素因数の和:3603

約数の個数: 192

約数和(自身を含む): 2190304800

約数和(自身を除く): 1550300904

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 17, 18, 21, 24, 27, 28, 34, 36, 42, 49, 51, 54, 56, 63, 68, 72, 84, 98, 102, 108, 119, 126, 136, 147, 153, 168, 189, 196, 204, 216, 238, 252, 294, 306, 357, 378, 392, 408, 441, 459, 476, 504, 588, 612, 714, 756, 833, 882, 918, 952, 1071, 1176, 1224, 1323, 1428, 1512, 1666, 1764, 1836, 2142, 2499, 2646, 2856, 3213, 3332, 3528, 3557, 3672, 4284, 4998, 5292, 6426, 6664, 7114, 7497, 8568, 9996, 10584, 10671, 12852, 14228, 14994, 19992, 21342, 22491, 24899, 25704, 28456, 29988, 32013, 42684, 44982, 49798, 59976, 60469, 64026, 74697, 85368, 89964, 96039, 99596, 120938, 128052, 149394, 174293, 179928, 181407, 192078, 199192, 224091, 241876, 256104, 298788, 348586, 362814, 384156, 423283, 448182, 483752, 522879, 544221, 597576, 672273, 697172, 725628, 768312, 846566, 896364, 1045758, 1088442, 1269849, 1344546, 1394344, 1451256, 1568637, 1632663, 1693132, 1792728, 2091516, 2176884, 2539698, 2689092, 2962981, 3137274, 3265326, 3386264, 3809547, 4183032, 4353768, 4705911, 5079396, 5378184, 5925962, 6274548, 6530652, 7619094, 8888943, 9411822, 10158792, 11428641, 11851924, 12549096, 13061304, 15238188, 17777886, 18823644, 22857282, 23703848, 26666829, 30476376, 35555772, 37647288, 45714564, 53333658, 71111544, 80000487, 91429128, 106667316, 160000974, 213334632, 320001948, 640003896]

約数ペア:

[(1, 640003896), (2, 320001948), (3, 213334632), (4, 160000974), (6, 106667316), (7, 91429128), (8, 80000487), (9, 71111544), (12, 53333658), (14, 45714564), (17, 37647288), (18, 35555772), (21, 30476376), (24, 26666829), (27, 23703848), (28, 22857282), (34, 18823644), (36, 17777886), (42, 15238188), (49, 13061304), (51, 12549096), (54, 11851924), (56, 11428641), (63, 10158792), (68, 9411822), (72, 8888943), (84, 7619094), (98, 6530652), (102, 6274548), (108, 5925962), (119, 5378184), (126, 5079396), (136, 4705911), (147, 4353768), (153, 4183032), (168, 3809547), (189, 3386264), (196, 3265326), (204, 3137274), (216, 2962981), (238, 2689092), (252, 2539698), (294, 2176884), (306, 2091516), (357, 1792728), (378, 1693132), (392, 1632663), (408, 1568637), (441, 1451256), (459, 1394344), (476, 1344546), (504, 1269849), (588, 1088442), (612, 1045758), (714, 896364), (756, 846566), (833, 768312), (882, 725628), (918, 697172), (952, 672273), (1071, 597576), (1176, 544221), (1224, 522879), (1323, 483752), (1428, 448182), (1512, 423283), (1666, 384156), (1764, 362814), (1836, 348586), (2142, 298788), (2499, 256104), (2646, 241876), (2856, 224091), (3213, 199192), (3332, 192078), (3528, 181407), (3557, 179928), (3672, 174293), (4284, 149394), (4998, 128052), (5292, 120938), (6426, 99596), (6664, 96039), (7114, 89964), (7497, 85368), (8568, 74697), (9996, 64026), (10584, 60469), (10671, 59976), (12852, 49798), (14228, 44982), (14994, 42684), (19992, 32013), (21342, 29988), (22491, 28456), (24899, 25704)]