1800406920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{7351}}^1$

素因数の和:7535

約数の個数: 128

約数和(自身を含む): 5854544640

約数和(自身を除く): 4054137720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 157, 195, 260, 312, 314, 390, 471, 520, 628, 780, 785, 942, 1256, 1560, 1570, 1884, 2041, 2355, 3140, 3768, 4082, 4710, 6123, 6280, 7351, 8164, 9420, 10205, 12246, 14702, 16328, 18840, 20410, 22053, 24492, 29404, 30615, 36755, 40820, 44106, 48984, 58808, 61230, 73510, 81640, 88212, 95563, 110265, 122460, 147020, 176424, 191126, 220530, 244920, 286689, 294040, 382252, 441060, 477815, 573378, 764504, 882120, 955630, 1146756, 1154107, 1433445, 1911260, 2293512, 2308214, 2866890, 3462321, 3822520, 4616428, 5733780, 5770535, 6924642, 9232856, 11467560, 11541070, 13849284, 15003391, 17311605, 23082140, 27698568, 30006782, 34623210, 45010173, 46164280, 60013564, 69246420, 75016955, 90020346, 120027128, 138492840, 150033910, 180040692, 225050865, 300067820, 360081384, 450101730, 600135640, 900203460, 1800406920]

約数ペア:

[(1, 1800406920), (2, 900203460), (3, 600135640), (4, 450101730), (5, 360081384), (6, 300067820), (8, 225050865), (10, 180040692), (12, 150033910), (13, 138492840), (15, 120027128), (20, 90020346), (24, 75016955), (26, 69246420), (30, 60013564), (39, 46164280), (40, 45010173), (52, 34623210), (60, 30006782), (65, 27698568), (78, 23082140), (104, 17311605), (120, 15003391), (130, 13849284), (156, 11541070), (157, 11467560), (195, 9232856), (260, 6924642), (312, 5770535), (314, 5733780), (390, 4616428), (471, 3822520), (520, 3462321), (628, 2866890), (780, 2308214), (785, 2293512), (942, 1911260), (1256, 1433445), (1560, 1154107), (1570, 1146756), (1884, 955630), (2041, 882120), (2355, 764504), (3140, 573378), (3768, 477815), (4082, 441060), (4710, 382252), (6123, 294040), (6280, 286689), (7351, 244920), (8164, 220530), (9420, 191126), (10205, 176424), (12246, 147020), (14702, 122460), (16328, 110265), (18840, 95563), (20410, 88212), (22053, 81640), (24492, 73510), (29404, 61230), (30615, 58808), (36755, 48984), (40820, 44106)]