16981120

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^2\times {\mathrm{157}}^1$

素因数の和:202

約数の個数: 96

約数和(自身を含む): 44238420

約数和(自身を除く): 27257300

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 157, 160, 169, 208, 260, 314, 320, 338, 416, 520, 628, 640, 676, 785, 832, 845, 1040, 1256, 1352, 1570, 1664, 1690, 2041, 2080, 2512, 2704, 3140, 3380, 4082, 4160, 5024, 5408, 6280, 6760, 8164, 8320, 10048, 10205, 10816, 12560, 13520, 16328, 20096, 20410, 21632, 25120, 26533, 27040, 32656, 40820, 50240, 53066, 54080, 65312, 81640, 100480, 106132, 108160, 130624, 132665, 163280, 212264, 261248, 265330, 326560, 424528, 530660, 653120, 849056, 1061320, 1306240, 1698112, 2122640, 3396224, 4245280, 8490560, 16981120]

約数ペア:

[(1, 16981120), (2, 8490560), (4, 4245280), (5, 3396224), (8, 2122640), (10, 1698112), (13, 1306240), (16, 1061320), (20, 849056), (26, 653120), (32, 530660), (40, 424528), (52, 326560), (64, 265330), (65, 261248), (80, 212264), (104, 163280), (128, 132665), (130, 130624), (157, 108160), (160, 106132), (169, 100480), (208, 81640), (260, 65312), (314, 54080), (320, 53066), (338, 50240), (416, 40820), (520, 32656), (628, 27040), (640, 26533), (676, 25120), (785, 21632), (832, 20410), (845, 20096), (1040, 16328), (1256, 13520), (1352, 12560), (1570, 10816), (1664, 10205), (1690, 10048), (2041, 8320), (2080, 8164), (2512, 6760), (2704, 6280), (3140, 5408), (3380, 5024), (4082, 4160)]