20187930

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{383}}^1$

素因数の和:651

約数の個数: 64

約数和(自身を含む): 55738368

約数和(自身を除く): 35550438

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 251, 383, 502, 753, 766, 1149, 1255, 1506, 1757, 1915, 2298, 2510, 2681, 3514, 3765, 3830, 5271, 5362, 5745, 7530, 8043, 8785, 10542, 11490, 13405, 16086, 17570, 26355, 26810, 40215, 52710, 80430, 96133, 192266, 288399, 480665, 576798, 672931, 961330, 1345862, 1441995, 2018793, 2883990, 3364655, 4037586, 6729310, 10093965, 20187930]

約数ペア:

[(1, 20187930), (2, 10093965), (3, 6729310), (5, 4037586), (6, 3364655), (7, 2883990), (10, 2018793), (14, 1441995), (15, 1345862), (21, 961330), (30, 672931), (35, 576798), (42, 480665), (70, 288399), (105, 192266), (210, 96133), (251, 80430), (383, 52710), (502, 40215), (753, 26810), (766, 26355), (1149, 17570), (1255, 16086), (1506, 13405), (1757, 11490), (1915, 10542), (2298, 8785), (2510, 8043), (2681, 7530), (3514, 5745), (3765, 5362), (3830, 5271)]