18401840

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:246

約数の個数: 80

約数和(自身を含む): 45586368

約数和(自身を除く): 27184528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 73, 80, 92, 115, 137, 146, 184, 230, 274, 292, 365, 368, 460, 548, 584, 685, 730, 920, 1096, 1168, 1370, 1460, 1679, 1840, 2192, 2740, 2920, 3151, 3358, 5480, 5840, 6302, 6716, 8395, 10001, 10960, 12604, 13432, 15755, 16790, 20002, 25208, 26864, 31510, 33580, 40004, 50005, 50416, 63020, 67160, 80008, 100010, 126040, 134320, 160016, 200020, 230023, 252080, 400040, 460046, 800080, 920092, 1150115, 1840184, 2300230, 3680368, 4600460, 9200920, 18401840]

約数ペア:

[(1, 18401840), (2, 9200920), (4, 4600460), (5, 3680368), (8, 2300230), (10, 1840184), (16, 1150115), (20, 920092), (23, 800080), (40, 460046), (46, 400040), (73, 252080), (80, 230023), (92, 200020), (115, 160016), (137, 134320), (146, 126040), (184, 100010), (230, 80008), (274, 67160), (292, 63020), (365, 50416), (368, 50005), (460, 40004), (548, 33580), (584, 31510), (685, 26864), (730, 25208), (920, 20002), (1096, 16790), (1168, 15755), (1370, 13432), (1460, 12604), (1679, 10960), (1840, 10001), (2192, 8395), (2740, 6716), (2920, 6302), (3151, 5840), (3358, 5480)]