205901820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{191}}^1$

素因数の和:372

約数の個数: 144

約数和(自身を含む): 645345792

約数和(自身を除く): 439443972

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 113, 159, 180, 191, 212, 226, 265, 318, 339, 382, 452, 477, 530, 565, 573, 636, 678, 764, 795, 954, 955, 1017, 1060, 1130, 1146, 1356, 1590, 1695, 1719, 1908, 1910, 2034, 2260, 2292, 2385, 2865, 3180, 3390, 3438, 3820, 4068, 4770, 5085, 5730, 5989, 6780, 6876, 8595, 9540, 10123, 10170, 11460, 11978, 17190, 17967, 20246, 20340, 21583, 23956, 29945, 30369, 34380, 35934, 40492, 43166, 50615, 53901, 59890, 60738, 64749, 71868, 86332, 89835, 91107, 101230, 107802, 107915, 119780, 121476, 129498, 151845, 179670, 182214, 194247, 202460, 215604, 215830, 258996, 269505, 303690, 323745, 359340, 364428, 388494, 431660, 455535, 539010, 607380, 647490, 776988, 911070, 971235, 1078020, 1143899, 1294980, 1822140, 1942470, 2287798, 3431697, 3884940, 4575596, 5719495, 6863394, 10295091, 11438990, 13726788, 17158485, 20590182, 22877980, 34316970, 41180364, 51475455, 68633940, 102950910, 205901820]

約数ペア:

[(1, 205901820), (2, 102950910), (3, 68633940), (4, 51475455), (5, 41180364), (6, 34316970), (9, 22877980), (10, 20590182), (12, 17158485), (15, 13726788), (18, 11438990), (20, 10295091), (30, 6863394), (36, 5719495), (45, 4575596), (53, 3884940), (60, 3431697), (90, 2287798), (106, 1942470), (113, 1822140), (159, 1294980), (180, 1143899), (191, 1078020), (212, 971235), (226, 911070), (265, 776988), (318, 647490), (339, 607380), (382, 539010), (452, 455535), (477, 431660), (530, 388494), (565, 364428), (573, 359340), (636, 323745), (678, 303690), (764, 269505), (795, 258996), (954, 215830), (955, 215604), (1017, 202460), (1060, 194247), (1130, 182214), (1146, 179670), (1356, 151845), (1590, 129498), (1695, 121476), (1719, 119780), (1908, 107915), (1910, 107802), (2034, 101230), (2260, 91107), (2292, 89835), (2385, 86332), (2865, 71868), (3180, 64749), (3390, 60738), (3438, 59890), (3820, 53901), (4068, 50615), (4770, 43166), (5085, 40492), (5730, 35934), (5989, 34380), (6780, 30369), (6876, 29945), (8595, 23956), (9540, 21583), (10123, 20340), (10170, 20246), (11460, 17967), (11978, 17190)]