1808869616

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{160817}}^1$

素因数の和:160881

約数の個数: 40

約数和(自身を含む): 3788872080

約数和(自身を除く): 1980002464

約数列:

[1, 2, 4, 8, 16, 19, 37, 38, 74, 76, 148, 152, 296, 304, 592, 703, 1406, 2812, 5624, 11248, 160817, 321634, 643268, 1286536, 2573072, 3055523, 5950229, 6111046, 11900458, 12222092, 23800916, 24444184, 47601832, 48888368, 95203664, 113054351, 226108702, 452217404, 904434808, 1808869616]

約数ペア:

[(1, 1808869616), (2, 904434808), (4, 452217404), (8, 226108702), (16, 113054351), (19, 95203664), (37, 48888368), (38, 47601832), (74, 24444184), (76, 23800916), (148, 12222092), (152, 11900458), (296, 6111046), (304, 5950229), (592, 3055523), (703, 2573072), (1406, 1286536), (2812, 643268), (5624, 321634), (11248, 160817)]