28004868

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:361

約数の個数: 72

約数和(自身を含む): 73673600

約数和(自身を除く): 45668732

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 79, 86, 129, 158, 172, 229, 237, 258, 316, 387, 458, 474, 516, 687, 711, 774, 916, 948, 1374, 1422, 1548, 2061, 2748, 2844, 3397, 4122, 6794, 8244, 9847, 10191, 13588, 18091, 19694, 20382, 29541, 30573, 36182, 39388, 40764, 54273, 59082, 61146, 72364, 88623, 108546, 118164, 122292, 162819, 177246, 217092, 325638, 354492, 651276, 777913, 1555826, 2333739, 3111652, 4667478, 7001217, 9334956, 14002434, 28004868]

約数ペア:

[(1, 28004868), (2, 14002434), (3, 9334956), (4, 7001217), (6, 4667478), (9, 3111652), (12, 2333739), (18, 1555826), (36, 777913), (43, 651276), (79, 354492), (86, 325638), (129, 217092), (158, 177246), (172, 162819), (229, 122292), (237, 118164), (258, 108546), (316, 88623), (387, 72364), (458, 61146), (474, 59082), (516, 54273), (687, 40764), (711, 39388), (774, 36182), (916, 30573), (948, 29541), (1374, 20382), (1422, 19694), (1548, 18091), (2061, 13588), (2748, 10191), (2844, 9847), (3397, 8244), (4122, 6794)]