399478240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{20981}}^1$

素因数の和:21020

約数の個数: 96

約数和(自身を含む): 1142092224

約数和(自身を除く): 742613984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 160, 170, 224, 238, 272, 280, 340, 476, 544, 560, 595, 680, 952, 1120, 1190, 1360, 1904, 2380, 2720, 3808, 4760, 9520, 19040, 20981, 41962, 83924, 104905, 146867, 167848, 209810, 293734, 335696, 356677, 419620, 587468, 671392, 713354, 734335, 839240, 1174936, 1426708, 1468670, 1678480, 1783385, 2349872, 2496739, 2853416, 2937340, 3356960, 3566770, 4699744, 4993478, 5706832, 5874680, 7133540, 9986956, 11413664, 11749360, 12483695, 14267080, 19973912, 23498720, 24967390, 28534160, 39947824, 49934780, 57068320, 79895648, 99869560, 199739120, 399478240]

約数ペア:

[(1, 399478240), (2, 199739120), (4, 99869560), (5, 79895648), (7, 57068320), (8, 49934780), (10, 39947824), (14, 28534160), (16, 24967390), (17, 23498720), (20, 19973912), (28, 14267080), (32, 12483695), (34, 11749360), (35, 11413664), (40, 9986956), (56, 7133540), (68, 5874680), (70, 5706832), (80, 4993478), (85, 4699744), (112, 3566770), (119, 3356960), (136, 2937340), (140, 2853416), (160, 2496739), (170, 2349872), (224, 1783385), (238, 1678480), (272, 1468670), (280, 1426708), (340, 1174936), (476, 839240), (544, 734335), (560, 713354), (595, 671392), (680, 587468), (952, 419620), (1120, 356677), (1190, 335696), (1360, 293734), (1904, 209810), (2380, 167848), (2720, 146867), (3808, 104905), (4760, 83924), (9520, 41962), (19040, 20981)]