19010720

素因数分解:

$2^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{907}}^1$

素因数の和:1053

約数の個数: 48

約数和(自身を含む): 45305568

約数和(自身を除く): 26294848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 131, 160, 262, 524, 655, 907, 1048, 1310, 1814, 2096, 2620, 3628, 4192, 4535, 5240, 7256, 9070, 10480, 14512, 18140, 20960, 29024, 36280, 72560, 118817, 145120, 237634, 475268, 594085, 950536, 1188170, 1901072, 2376340, 3802144, 4752680, 9505360, 19010720]

約数ペア:

[(1, 19010720), (2, 9505360), (4, 4752680), (5, 3802144), (8, 2376340), (10, 1901072), (16, 1188170), (20, 950536), (32, 594085), (40, 475268), (80, 237634), (131, 145120), (160, 118817), (262, 72560), (524, 36280), (655, 29024), (907, 20960), (1048, 18140), (1310, 14512), (1814, 10480), (2096, 9070), (2620, 7256), (3628, 5240), (4192, 4535)]