254287640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:249

約数の個数: 128

約数和(自身を含む): 629856000

約数和(自身を除く): 375568360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 53, 59, 76, 95, 106, 107, 118, 152, 190, 212, 214, 236, 265, 295, 380, 424, 428, 472, 530, 535, 590, 760, 856, 1007, 1060, 1070, 1121, 1180, 2014, 2033, 2120, 2140, 2242, 2360, 3127, 4028, 4066, 4280, 4484, 5035, 5605, 5671, 6254, 6313, 8056, 8132, 8968, 10070, 10165, 11210, 11342, 12508, 12626, 15635, 16264, 20140, 20330, 22420, 22684, 25016, 25252, 28355, 31270, 31565, 40280, 40660, 44840, 45368, 50504, 56710, 59413, 62540, 63130, 81320, 107749, 113420, 118826, 119947, 125080, 126260, 215498, 226840, 237652, 239894, 252520, 297065, 334589, 430996, 475304, 479788, 538745, 594130, 599735, 669178, 861992, 959576, 1077490, 1188260, 1199470, 1338356, 1672945, 2154980, 2376520, 2398940, 2676712, 3345890, 4309960, 4797880, 6357191, 6691780, 12714382, 13383560, 25428764, 31785955, 50857528, 63571910, 127143820, 254287640]

約数ペア:

[(1, 254287640), (2, 127143820), (4, 63571910), (5, 50857528), (8, 31785955), (10, 25428764), (19, 13383560), (20, 12714382), (38, 6691780), (40, 6357191), (53, 4797880), (59, 4309960), (76, 3345890), (95, 2676712), (106, 2398940), (107, 2376520), (118, 2154980), (152, 1672945), (190, 1338356), (212, 1199470), (214, 1188260), (236, 1077490), (265, 959576), (295, 861992), (380, 669178), (424, 599735), (428, 594130), (472, 538745), (530, 479788), (535, 475304), (590, 430996), (760, 334589), (856, 297065), (1007, 252520), (1060, 239894), (1070, 237652), (1121, 226840), (1180, 215498), (2014, 126260), (2033, 125080), (2120, 119947), (2140, 118826), (2242, 113420), (2360, 107749), (3127, 81320), (4028, 63130), (4066, 62540), (4280, 59413), (4484, 56710), (5035, 50504), (5605, 45368), (5671, 44840), (6254, 40660), (6313, 40280), (8056, 31565), (8132, 31270), (8968, 28355), (10070, 25252), (10165, 25016), (11210, 22684), (11342, 22420), (12508, 20330), (12626, 20140), (15635, 16264)]